21485014761

素因数分解:

$3^1\times 7^4\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{337}}^1$

素因数の和:588

約数の個数: 80

約数和(自身を含む): 34355228544

約数和(自身を除く): 12870213783

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 167, 337, 343, 371, 501, 1011, 1029, 1113, 1169, 2359, 2401, 2597, 3507, 7077, 7203, 7791, 8183, 8851, 16513, 17861, 18179, 24549, 26553, 49539, 53583, 54537, 56279, 57281, 61957, 115591, 125027, 127253, 168837, 171843, 185871, 346773, 375081, 381759, 393953, 400967, 433699, 809137, 875189, 1181859, 1202901, 1301097, 2427411, 2625567, 2757671, 2982787, 3035893, 6126323, 8273013, 8948361, 9107679, 18378969, 19303697, 20879509, 21251251, 42884261, 57911091, 62638527, 63753753, 128652783, 135125879, 146156563, 405377637, 438469689, 1023095941, 3069287823, 7161671587, 21485014761]

約数ペア:

[(1, 21485014761), (3, 7161671587), (7, 3069287823), (21, 1023095941), (49, 438469689), (53, 405377637), (147, 146156563), (159, 135125879), (167, 128652783), (337, 63753753), (343, 62638527), (371, 57911091), (501, 42884261), (1011, 21251251), (1029, 20879509), (1113, 19303697), (1169, 18378969), (2359, 9107679), (2401, 8948361), (2597, 8273013), (3507, 6126323), (7077, 3035893), (7203, 2982787), (7791, 2757671), (8183, 2625567), (8851, 2427411), (16513, 1301097), (17861, 1202901), (18179, 1181859), (24549, 875189), (26553, 809137), (49539, 433699), (53583, 400967), (54537, 393953), (56279, 381759), (57281, 375081), (61957, 346773), (115591, 185871), (125027, 171843), (127253, 168837)]