21353808

素因数分解:

$2^4\times 3^1\times 7^3\times {\mathrm{1297}}^1$

素因数の和:1329

約数の個数: 80

約数和(自身を含む): 64380800

約数和(自身を除く): 43026992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 196, 294, 336, 343, 392, 588, 686, 784, 1029, 1176, 1297, 1372, 2058, 2352, 2594, 2744, 3891, 4116, 5188, 5488, 7782, 8232, 9079, 10376, 15564, 16464, 18158, 20752, 27237, 31128, 36316, 54474, 62256, 63553, 72632, 108948, 127106, 145264, 190659, 217896, 254212, 381318, 435792, 444871, 508424, 762636, 889742, 1016848, 1334613, 1525272, 1779484, 2669226, 3050544, 3558968, 5338452, 7117936, 10676904, 21353808]

約数ペア:

[(1, 21353808), (2, 10676904), (3, 7117936), (4, 5338452), (6, 3558968), (7, 3050544), (8, 2669226), (12, 1779484), (14, 1525272), (16, 1334613), (21, 1016848), (24, 889742), (28, 762636), (42, 508424), (48, 444871), (49, 435792), (56, 381318), (84, 254212), (98, 217896), (112, 190659), (147, 145264), (168, 127106), (196, 108948), (294, 72632), (336, 63553), (343, 62256), (392, 54474), (588, 36316), (686, 31128), (784, 27237), (1029, 20752), (1176, 18158), (1297, 16464), (1372, 15564), (2058, 10376), (2352, 9079), (2594, 8232), (2744, 7782), (3891, 5488), (4116, 5188)]