21502964

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3539}}^1$

素因数の和:3588

約数の個数: 36

約数和(自身を含む): 45198720

約数和(自身を除く): 23695756

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3539, 6076, 7078, 14156, 24773, 49546, 99092, 109709, 173411, 219418, 346822, 438836, 693644, 767963, 1535926, 3071852, 5375741, 10751482, 21502964]

約数ペア:

[(1, 21502964), (2, 10751482), (4, 5375741), (7, 3071852), (14, 1535926), (28, 767963), (31, 693644), (49, 438836), (62, 346822), (98, 219418), (124, 173411), (196, 109709), (217, 99092), (434, 49546), (868, 24773), (1519, 14156), (3038, 7078), (3539, 6076)]