217188356

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 523235328

約数和(自身を除く): 306046972

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 31, 43, 44, 46, 62, 77, 86, 92, 124, 154, 161, 172, 217, 253, 301, 308, 322, 341, 434, 473, 506, 529, 602, 644, 682, 713, 868, 946, 989, 1012, 1058, 1204, 1333, 1364, 1426, 1771, 1892, 1978, 2116, 2387, 2666, 2852, 3311, 3542, 3703, 3956, 4774, 4991, 5332, 5819, 6622, 6923, 7084, 7406, 7843, 9331, 9548, 9982, 10879, 11638, 13244, 13846, 14663, 14812, 15686, 16399, 18662, 19964, 21758, 22747, 23276, 27692, 29326, 30659, 31372, 32798, 37324, 40733, 43516, 45494, 54901, 58652, 61318, 65596, 76153, 81466, 90988, 102641, 109802, 114793, 122636, 152306, 159229, 162932, 180389, 205282, 214613, 219604, 229586, 250217, 304612, 318458, 337249, 360778, 410564, 429226, 459172, 500434, 636916, 674498, 705157, 721556, 858452, 1000868, 1262723, 1348996, 1410314, 1751519, 2360743, 2525446, 2820628, 3503038, 4721486, 4936099, 5050892, 7006076, 7756727, 9442972, 9872198, 15513454, 19744396, 31026908, 54297089, 108594178, 217188356]

約数ペア:

[(1, 217188356), (2, 108594178), (4, 54297089), (7, 31026908), (11, 19744396), (14, 15513454), (22, 9872198), (23, 9442972), (28, 7756727), (31, 7006076), (43, 5050892), (44, 4936099), (46, 4721486), (62, 3503038), (77, 2820628), (86, 2525446), (92, 2360743), (124, 1751519), (154, 1410314), (161, 1348996), (172, 1262723), (217, 1000868), (253, 858452), (301, 721556), (308, 705157), (322, 674498), (341, 636916), (434, 500434), (473, 459172), (506, 429226), (529, 410564), (602, 360778), (644, 337249), (682, 318458), (713, 304612), (868, 250217), (946, 229586), (989, 219604), (1012, 214613), (1058, 205282), (1204, 180389), (1333, 162932), (1364, 159229), (1426, 152306), (1771, 122636), (1892, 114793), (1978, 109802), (2116, 102641), (2387, 90988), (2666, 81466), (2852, 76153), (3311, 65596), (3542, 61318), (3703, 58652), (3956, 54901), (4774, 45494), (4991, 43516), (5332, 40733), (5819, 37324), (6622, 32798), (6923, 31372), (7084, 30659), (7406, 29326), (7843, 27692), (9331, 23276), (9548, 22747), (9982, 21758), (10879, 19964), (11638, 18662), (13244, 16399), (13846, 15686), (14663, 14812)]