20615476

素因数分解:

$2^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{983}}^1$

素因数の和:1108

約数の個数: 36

約数和(自身を含む): 42402528

約数和(自身を除く): 21787052

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 107, 196, 214, 428, 749, 983, 1498, 1966, 2996, 3932, 5243, 6881, 10486, 13762, 20972, 27524, 48167, 96334, 105181, 192668, 210362, 420724, 736267, 1472534, 2945068, 5153869, 10307738, 20615476]

約数ペア:

[(1, 20615476), (2, 10307738), (4, 5153869), (7, 2945068), (14, 1472534), (28, 736267), (49, 420724), (98, 210362), (107, 192668), (196, 105181), (214, 96334), (428, 48167), (749, 27524), (983, 20972), (1498, 13762), (1966, 10486), (2996, 6881), (3932, 5243)]