20643644

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1458

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 24514756

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 62, 68, 119, 124, 217, 238, 434, 476, 527, 868, 1054, 1399, 2108, 2798, 3689, 5596, 7378, 9793, 14756, 19586, 23783, 39172, 43369, 47566, 86738, 95132, 166481, 173476, 303583, 332962, 607166, 665924, 737273, 1214332, 1474546, 2949092, 5160911, 10321822, 20643644]

約数ペア:

[(1, 20643644), (2, 10321822), (4, 5160911), (7, 2949092), (14, 1474546), (17, 1214332), (28, 737273), (31, 665924), (34, 607166), (62, 332962), (68, 303583), (119, 173476), (124, 166481), (217, 95132), (238, 86738), (434, 47566), (476, 43369), (527, 39172), (868, 23783), (1054, 19586), (1399, 14756), (2108, 9793), (2798, 7378), (3689, 5596)]