21707910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34457}}^1$

素因数の和:34477

約数の個数: 48

約数和(自身を含む): 64505376

約数和(自身を除く): 42797466

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34457, 68914, 103371, 172285, 206742, 241199, 310113, 344570, 482398, 516855, 620226, 723597, 1033710, 1205995, 1447194, 1550565, 2170791, 2411990, 3101130, 3617985, 4341582, 7235970, 10853955, 21707910]

約数ペア:

[(1, 21707910), (2, 10853955), (3, 7235970), (5, 4341582), (6, 3617985), (7, 3101130), (9, 2411990), (10, 2170791), (14, 1550565), (15, 1447194), (18, 1205995), (21, 1033710), (30, 723597), (35, 620226), (42, 516855), (45, 482398), (63, 344570), (70, 310113), (90, 241199), (105, 206742), (126, 172285), (210, 103371), (315, 68914), (630, 34457)]