21782196

素因数分解:

$2^2\times 3^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 61797120

約数和(自身を除く): 40014924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 37, 46, 54, 69, 74, 79, 81, 92, 108, 111, 138, 148, 158, 162, 207, 222, 237, 276, 316, 324, 333, 414, 444, 474, 621, 666, 711, 828, 851, 948, 999, 1242, 1332, 1422, 1702, 1817, 1863, 1998, 2133, 2484, 2553, 2844, 2923, 2997, 3404, 3634, 3726, 3996, 4266, 5106, 5451, 5846, 5994, 6399, 7268, 7452, 7659, 8532, 8769, 10212, 10902, 11692, 11988, 12798, 15318, 16353, 17538, 21804, 22977, 25596, 26307, 30636, 32706, 35076, 45954, 49059, 52614, 65412, 67229, 68931, 78921, 91908, 98118, 105228, 134458, 137862, 147177, 157842, 196236, 201687, 236763, 268916, 275724, 294354, 315684, 403374, 473526, 588708, 605061, 806748, 947052, 1210122, 1815183, 2420244, 3630366, 5445549, 7260732, 10891098, 21782196]

約数ペア:

[(1, 21782196), (2, 10891098), (3, 7260732), (4, 5445549), (6, 3630366), (9, 2420244), (12, 1815183), (18, 1210122), (23, 947052), (27, 806748), (36, 605061), (37, 588708), (46, 473526), (54, 403374), (69, 315684), (74, 294354), (79, 275724), (81, 268916), (92, 236763), (108, 201687), (111, 196236), (138, 157842), (148, 147177), (158, 137862), (162, 134458), (207, 105228), (222, 98118), (237, 91908), (276, 78921), (316, 68931), (324, 67229), (333, 65412), (414, 52614), (444, 49059), (474, 45954), (621, 35076), (666, 32706), (711, 30636), (828, 26307), (851, 25596), (948, 22977), (999, 21804), (1242, 17538), (1332, 16353), (1422, 15318), (1702, 12798), (1817, 11988), (1863, 11692), (1998, 10902), (2133, 10212), (2484, 8769), (2553, 8532), (2844, 7659), (2923, 7452), (2997, 7268), (3404, 6399), (3634, 5994), (3726, 5846), (3996, 5451), (4266, 5106)]