21307923970

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1\times {\mathrm{28297}}^1$

素因数の和:28854

約数の個数: 32

約数和(自身を含む): 38636278128

約数和(自身を除く): 17328354158

約数列:

[1, 2, 5, 10, 257, 293, 514, 586, 1285, 1465, 2570, 2930, 28297, 56594, 75301, 141485, 150602, 282970, 376505, 753010, 7272329, 8291021, 14544658, 16582042, 36361645, 41455105, 72723290, 82910210, 2130792397, 4261584794, 10653961985, 21307923970]

約数ペア:

[(1, 21307923970), (2, 10653961985), (5, 4261584794), (10, 2130792397), (257, 82910210), (293, 72723290), (514, 41455105), (586, 36361645), (1285, 16582042), (1465, 14544658), (2570, 8291021), (2930, 7272329), (28297, 753010), (56594, 376505), (75301, 282970), (141485, 150602)]