20691996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 55695360

約数和(自身を除く): 35003364

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 73, 78, 79, 92, 138, 146, 156, 158, 219, 237, 276, 292, 299, 316, 438, 474, 598, 876, 897, 948, 949, 1027, 1196, 1679, 1794, 1817, 1898, 2054, 2847, 3081, 3358, 3588, 3634, 3796, 4108, 5037, 5451, 5694, 5767, 6162, 6716, 7268, 10074, 10902, 11388, 11534, 12324, 17301, 20148, 21804, 21827, 23068, 23621, 34602, 43654, 47242, 65481, 69204, 70863, 74971, 87308, 94484, 130962, 132641, 141726, 149942, 224913, 261924, 265282, 283452, 299884, 397923, 449826, 530564, 795846, 899652, 1591692, 1724333, 3448666, 5172999, 6897332, 10345998, 20691996]

約数ペア:

[(1, 20691996), (2, 10345998), (3, 6897332), (4, 5172999), (6, 3448666), (12, 1724333), (13, 1591692), (23, 899652), (26, 795846), (39, 530564), (46, 449826), (52, 397923), (69, 299884), (73, 283452), (78, 265282), (79, 261924), (92, 224913), (138, 149942), (146, 141726), (156, 132641), (158, 130962), (219, 94484), (237, 87308), (276, 74971), (292, 70863), (299, 69204), (316, 65481), (438, 47242), (474, 43654), (598, 34602), (876, 23621), (897, 23068), (948, 21827), (949, 21804), (1027, 20148), (1196, 17301), (1679, 12324), (1794, 11534), (1817, 11388), (1898, 10902), (2054, 10074), (2847, 7268), (3081, 6716), (3358, 6162), (3588, 5767), (3634, 5694), (3796, 5451), (4108, 5037)]