21121023165

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{863}}^1\times {\mathrm{6449}}^1$

素因数の和:7354

約数の個数: 64

約数和(自身を含む): 38519193600

約数和(自身を除く): 17398170435

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 863, 1265, 2589, 3795, 4315, 6449, 9493, 12945, 19347, 19849, 28479, 32245, 47465, 59547, 70939, 96735, 99245, 142395, 148327, 212817, 218339, 297735, 354695, 444981, 655017, 741635, 1064085, 1091695, 1631597, 2224905, 3275085, 4894791, 5565487, 8157985, 16696461, 24473955, 27827435, 61220357, 83482305, 128006201, 183661071, 306101785, 384018603, 640031005, 918305355, 1408068211, 1920093015, 4224204633, 7040341055, 21121023165]

約数ペア:

[(1, 21121023165), (3, 7040341055), (5, 4224204633), (11, 1920093015), (15, 1408068211), (23, 918305355), (33, 640031005), (55, 384018603), (69, 306101785), (115, 183661071), (165, 128006201), (253, 83482305), (345, 61220357), (759, 27827435), (863, 24473955), (1265, 16696461), (2589, 8157985), (3795, 5565487), (4315, 4894791), (6449, 3275085), (9493, 2224905), (12945, 1631597), (19347, 1091695), (19849, 1064085), (28479, 741635), (32245, 655017), (47465, 444981), (59547, 354695), (70939, 297735), (96735, 218339), (99245, 212817), (142395, 148327)]