21551572

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3547}}^1$

素因数の和:3596

約数の個数: 36

約数和(自身を含む): 45300864

約数和(自身を除く): 23749292

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3547, 6076, 7094, 14188, 24829, 49658, 99316, 109957, 173803, 219914, 347606, 439828, 695212, 769699, 1539398, 3078796, 5387893, 10775786, 21551572]

約数ペア:

[(1, 21551572), (2, 10775786), (4, 5387893), (7, 3078796), (14, 1539398), (28, 769699), (31, 695212), (49, 439828), (62, 347606), (98, 219914), (124, 173803), (196, 109957), (217, 99316), (434, 49658), (868, 24829), (1519, 14188), (3038, 7094), (3547, 6076)]