21327470

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{293}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 18680050

約数列:

[1, 2, 5, 10, 29, 58, 145, 251, 290, 293, 502, 586, 1255, 1465, 2510, 2930, 7279, 8497, 14558, 16994, 36395, 42485, 72790, 73543, 84970, 147086, 367715, 735430, 2132747, 4265494, 10663735, 21327470]

約数ペア:

[(1, 21327470), (2, 10663735), (5, 4265494), (10, 2132747), (29, 735430), (58, 367715), (145, 147086), (251, 84970), (290, 73543), (293, 72790), (502, 42485), (586, 36395), (1255, 16994), (1465, 14558), (2510, 8497), (2930, 7279)]