251591901

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 401863680

約数和(自身を除く): 150271779

約数列:

[1, 3, 11, 19, 33, 53, 57, 67, 113, 159, 201, 209, 339, 583, 627, 737, 1007, 1243, 1273, 1749, 2147, 2211, 3021, 3551, 3729, 3819, 5989, 6441, 7571, 10653, 11077, 14003, 17967, 22713, 23617, 33231, 39061, 42009, 65879, 67469, 70851, 83281, 113791, 117183, 143849, 197637, 202407, 249843, 341373, 401263, 431547, 742159, 1203789, 1251701, 1582339, 2226477, 3755103, 4413893, 4747017, 7623997, 13241679, 22871991, 83863967, 251591901]

約数ペア:

[(1, 251591901), (3, 83863967), (11, 22871991), (19, 13241679), (33, 7623997), (53, 4747017), (57, 4413893), (67, 3755103), (113, 2226477), (159, 1582339), (201, 1251701), (209, 1203789), (339, 742159), (583, 431547), (627, 401263), (737, 341373), (1007, 249843), (1243, 202407), (1273, 197637), (1749, 143849), (2147, 117183), (2211, 113791), (3021, 83281), (3551, 70851), (3729, 67469), (3819, 65879), (5989, 42009), (6441, 39061), (7571, 33231), (10653, 23617), (11077, 22713), (14003, 17967)]