21709324

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 51054080

約数和(自身を除く): 29344756

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 43, 52, 73, 76, 86, 91, 133, 146, 172, 182, 247, 266, 292, 301, 364, 494, 511, 532, 559, 602, 817, 949, 988, 1022, 1118, 1204, 1387, 1634, 1729, 1898, 2044, 2236, 2774, 3139, 3268, 3458, 3796, 3913, 5548, 5719, 6278, 6643, 6916, 7826, 9709, 10621, 11438, 12556, 13286, 15652, 18031, 19418, 21242, 21973, 22876, 26572, 36062, 38836, 40807, 42484, 43946, 59641, 72124, 74347, 81614, 87892, 119282, 126217, 148694, 163228, 238564, 252434, 285649, 297388, 417487, 504868, 571298, 775333, 834974, 1142596, 1550666, 1669948, 3101332, 5427331, 10854662, 21709324]

約数ペア:

[(1, 21709324), (2, 10854662), (4, 5427331), (7, 3101332), (13, 1669948), (14, 1550666), (19, 1142596), (26, 834974), (28, 775333), (38, 571298), (43, 504868), (52, 417487), (73, 297388), (76, 285649), (86, 252434), (91, 238564), (133, 163228), (146, 148694), (172, 126217), (182, 119282), (247, 87892), (266, 81614), (292, 74347), (301, 72124), (364, 59641), (494, 43946), (511, 42484), (532, 40807), (559, 38836), (602, 36062), (817, 26572), (949, 22876), (988, 21973), (1022, 21242), (1118, 19418), (1204, 18031), (1387, 15652), (1634, 13286), (1729, 12556), (1898, 11438), (2044, 10621), (2236, 9709), (2774, 7826), (3139, 6916), (3268, 6643), (3458, 6278), (3796, 5719), (3913, 5548)]