21001052

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:566

約数の個数: 36

約数和(自身を含む): 40177704

約数和(自身を除く): 19176652

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 491, 578, 629, 982, 1156, 1258, 1964, 2516, 8347, 10693, 16694, 18167, 21386, 33388, 36334, 42772, 72668, 141899, 283798, 308839, 567596, 617678, 1235356, 5250263, 10500526, 21001052]

約数ペア:

[(1, 21001052), (2, 10500526), (4, 5250263), (17, 1235356), (34, 617678), (37, 567596), (68, 308839), (74, 283798), (148, 141899), (289, 72668), (491, 42772), (578, 36334), (629, 33388), (982, 21386), (1156, 18167), (1258, 16694), (1964, 10693), (2516, 8347)]