21971684

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 48061440

約数和(自身を除く): 26089756

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 62, 68, 119, 124, 217, 238, 434, 476, 527, 868, 1054, 1489, 2108, 2978, 3689, 5956, 7378, 10423, 14756, 20846, 25313, 41692, 46159, 50626, 92318, 101252, 177191, 184636, 323113, 354382, 646226, 708764, 784703, 1292452, 1569406, 3138812, 5492921, 10985842, 21971684]

約数ペア:

[(1, 21971684), (2, 10985842), (4, 5492921), (7, 3138812), (14, 1569406), (17, 1292452), (28, 784703), (31, 708764), (34, 646226), (62, 354382), (68, 323113), (119, 184636), (124, 177191), (217, 101252), (238, 92318), (434, 50626), (476, 46159), (527, 41692), (868, 25313), (1054, 20846), (1489, 14756), (2108, 10423), (2978, 7378), (3689, 5956)]