21015899970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3169819}}^1$

素因数の和:3169859

約数の個数: 64

約数和(自身を含む): 57513214080

約数和(自身を除く): 36497314110

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3315, 6630, 3169819, 6339638, 9509457, 15849095, 19018914, 31698190, 41207647, 47547285, 53886923, 82415294, 95094570, 107773846, 123622941, 161660769, 206038235, 247245882, 269434615, 323321538, 412076470, 538869230, 618114705, 700529999, 808303845, 1236229410, 1401059998, 1616607690, 2101589997, 3502649995, 4203179994, 7005299990, 10507949985, 21015899970]

約数ペア:

[(1, 21015899970), (2, 10507949985), (3, 7005299990), (5, 4203179994), (6, 3502649995), (10, 2101589997), (13, 1616607690), (15, 1401059998), (17, 1236229410), (26, 808303845), (30, 700529999), (34, 618114705), (39, 538869230), (51, 412076470), (65, 323321538), (78, 269434615), (85, 247245882), (102, 206038235), (130, 161660769), (170, 123622941), (195, 107773846), (221, 95094570), (255, 82415294), (390, 53886923), (442, 47547285), (510, 41207647), (663, 31698190), (1105, 19018914), (1326, 15849095), (2210, 9509457), (3315, 6339638), (6630, 3169819)]