21501736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4273}}^1$

素因数の和:4333

約数の個数: 32

約数和(自身を含む): 43851240

約数和(自身を除く): 22349504

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4273, 5032, 8546, 17092, 34184, 72641, 145282, 158101, 290564, 316202, 581128, 632404, 1264808, 2687717, 5375434, 10750868, 21501736]

約数ペア:

[(1, 21501736), (2, 10750868), (4, 5375434), (8, 2687717), (17, 1264808), (34, 632404), (37, 581128), (68, 316202), (74, 290564), (136, 158101), (148, 145282), (296, 72641), (629, 34184), (1258, 17092), (2516, 8546), (4273, 5032)]