201721564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1061}}^1$

素因数の和:1254

約数の個数: 48

約数和(自身を含む): 401436000

約数和(自身を除く): 199714436

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 149, 298, 319, 596, 638, 1061, 1276, 1639, 2122, 3278, 4244, 4321, 6556, 8642, 11671, 17284, 23342, 30769, 46684, 47531, 61538, 95062, 123076, 158089, 190124, 316178, 338459, 632356, 676918, 1353836, 1738979, 3477958, 4584581, 6955916, 9169162, 18338324, 50430391, 100860782, 201721564]

約数ペア:

[(1, 201721564), (2, 100860782), (4, 50430391), (11, 18338324), (22, 9169162), (29, 6955916), (44, 4584581), (58, 3477958), (116, 1738979), (149, 1353836), (298, 676918), (319, 632356), (596, 338459), (638, 316178), (1061, 190124), (1276, 158089), (1639, 123076), (2122, 95062), (3278, 61538), (4244, 47531), (4321, 46684), (6556, 30769), (8642, 23342), (11671, 17284)]