21445476

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 57953280

約数和(自身を除く): 36507804

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 43, 46, 52, 69, 78, 86, 92, 129, 138, 139, 156, 172, 258, 276, 278, 299, 417, 516, 556, 559, 598, 834, 897, 989, 1118, 1196, 1668, 1677, 1794, 1807, 1978, 2236, 2967, 3197, 3354, 3588, 3614, 3956, 5421, 5934, 5977, 6394, 6708, 7228, 9591, 10842, 11868, 11954, 12788, 12857, 17931, 19182, 21684, 23908, 25714, 35862, 38364, 38571, 41561, 51428, 71724, 77142, 77701, 83122, 124683, 137471, 154284, 155402, 166244, 233103, 249366, 274942, 310804, 412413, 466206, 498732, 549884, 824826, 932412, 1649652, 1787123, 3574246, 5361369, 7148492, 10722738, 21445476]

約数ペア:

[(1, 21445476), (2, 10722738), (3, 7148492), (4, 5361369), (6, 3574246), (12, 1787123), (13, 1649652), (23, 932412), (26, 824826), (39, 549884), (43, 498732), (46, 466206), (52, 412413), (69, 310804), (78, 274942), (86, 249366), (92, 233103), (129, 166244), (138, 155402), (139, 154284), (156, 137471), (172, 124683), (258, 83122), (276, 77701), (278, 77142), (299, 71724), (417, 51428), (516, 41561), (556, 38571), (559, 38364), (598, 35862), (834, 25714), (897, 23908), (989, 21684), (1118, 19182), (1196, 17931), (1668, 12857), (1677, 12788), (1794, 11954), (1807, 11868), (1978, 10842), (2236, 9591), (2967, 7228), (3197, 6708), (3354, 6394), (3588, 5977), (3614, 5934), (3956, 5421)]