20216586

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26232054

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 59, 69, 78, 118, 138, 177, 191, 299, 354, 382, 573, 598, 767, 897, 1146, 1357, 1534, 1794, 2301, 2483, 2714, 4071, 4393, 4602, 4966, 7449, 8142, 8786, 11269, 13179, 14898, 17641, 22538, 26358, 33807, 35282, 52923, 57109, 67614, 105846, 114218, 146497, 171327, 259187, 292994, 342654, 439491, 518374, 777561, 878982, 1555122, 3369431, 6738862, 10108293, 20216586]

約数ペア:

[(1, 20216586), (2, 10108293), (3, 6738862), (6, 3369431), (13, 1555122), (23, 878982), (26, 777561), (39, 518374), (46, 439491), (59, 342654), (69, 292994), (78, 259187), (118, 171327), (138, 146497), (177, 114218), (191, 105846), (299, 67614), (354, 57109), (382, 52923), (573, 35282), (598, 33807), (767, 26358), (897, 22538), (1146, 17641), (1357, 14898), (1534, 13179), (1794, 11269), (2301, 8786), (2483, 8142), (2714, 7449), (4071, 4966), (4393, 4602)]