20915291523

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1091}}^1\times {\mathrm{2089}}^1$

素因数の和:3232

約数の個数: 64

約数和(自身を含む): 35055820800

約数和(自身を除く): 14140529277

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1091, 1311, 2089, 3059, 3273, 6267, 7637, 9177, 14623, 20729, 22911, 25093, 39691, 43869, 48047, 62187, 75279, 119073, 144141, 145103, 175651, 277837, 336329, 435309, 476767, 526953, 833511, 912893, 1008987, 1430301, 2279099, 2738679, 3337369, 6390251, 6837297, 10012107, 15953693, 19170753, 43302881, 47861079, 52419277, 129908643, 157257831, 303120167, 366934939, 909360501, 995966263, 1100804817, 2987898789, 6971763841, 20915291523]

約数ペア:

[(1, 20915291523), (3, 6971763841), (7, 2987898789), (19, 1100804817), (21, 995966263), (23, 909360501), (57, 366934939), (69, 303120167), (133, 157257831), (161, 129908643), (399, 52419277), (437, 47861079), (483, 43302881), (1091, 19170753), (1311, 15953693), (2089, 10012107), (3059, 6837297), (3273, 6390251), (6267, 3337369), (7637, 2738679), (9177, 2279099), (14623, 1430301), (20729, 1008987), (22911, 912893), (25093, 833511), (39691, 526953), (43869, 476767), (48047, 435309), (62187, 336329), (75279, 277837), (119073, 175651), (144141, 145103)]