20851566393

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{6599}}^1$

素因数の和:6846

約数の個数: 64

約数和(自身を含む): 34488115200

約数和(自身を除く): 13636548807

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 167, 357, 371, 501, 901, 1113, 1169, 2703, 2839, 3507, 6307, 6599, 8517, 8851, 18921, 19797, 19873, 26553, 46193, 59619, 61957, 112183, 138579, 150467, 185871, 336549, 349747, 451401, 785281, 1049241, 1053269, 1102033, 2355843, 2448229, 3159807, 3306099, 5945699, 7344687, 7714231, 17837097, 18734561, 23142693, 41619893, 56203683, 58407749, 124859679, 131141927, 175223247, 393425781, 408854243, 992931733, 1226562729, 2978795199, 6950522131, 20851566393]

約数ペア:

[(1, 20851566393), (3, 6950522131), (7, 2978795199), (17, 1226562729), (21, 992931733), (51, 408854243), (53, 393425781), (119, 175223247), (159, 131141927), (167, 124859679), (357, 58407749), (371, 56203683), (501, 41619893), (901, 23142693), (1113, 18734561), (1169, 17837097), (2703, 7714231), (2839, 7344687), (3507, 5945699), (6307, 3306099), (6599, 3159807), (8517, 2448229), (8851, 2355843), (18921, 1102033), (19797, 1053269), (19873, 1049241), (26553, 785281), (46193, 451401), (59619, 349747), (61957, 336549), (112183, 185871), (138579, 150467)]