21305256

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4373}}^1$

素因数の和:4418

約数の個数: 64

約数和(自身を含む): 62985600

約数和(自身を除く): 41680344

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 84, 87, 116, 168, 174, 203, 232, 348, 406, 609, 696, 812, 1218, 1624, 2436, 4373, 4872, 8746, 13119, 17492, 26238, 30611, 34984, 52476, 61222, 91833, 104952, 122444, 126817, 183666, 244888, 253634, 367332, 380451, 507268, 734664, 760902, 887719, 1014536, 1521804, 1775438, 2663157, 3043608, 3550876, 5326314, 7101752, 10652628, 21305256]

約数ペア:

[(1, 21305256), (2, 10652628), (3, 7101752), (4, 5326314), (6, 3550876), (7, 3043608), (8, 2663157), (12, 1775438), (14, 1521804), (21, 1014536), (24, 887719), (28, 760902), (29, 734664), (42, 507268), (56, 380451), (58, 367332), (84, 253634), (87, 244888), (116, 183666), (168, 126817), (174, 122444), (203, 104952), (232, 91833), (348, 61222), (406, 52476), (609, 34984), (696, 30611), (812, 26238), (1218, 17492), (1624, 13119), (2436, 8746), (4373, 4872)]