21970455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{367}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 38083584

約数和(自身を除く): 16113129

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 307, 367, 921, 1101, 1535, 1835, 3991, 4605, 4771, 5505, 11973, 14313, 19955, 23855, 59865, 71565, 112669, 338007, 563345, 1464697, 1690035, 4394091, 7323485, 21970455]

約数ペア:

[(1, 21970455), (3, 7323485), (5, 4394091), (13, 1690035), (15, 1464697), (39, 563345), (65, 338007), (195, 112669), (307, 71565), (367, 59865), (921, 23855), (1101, 19955), (1535, 14313), (1835, 11973), (3991, 5505), (4605, 4771)]