21296988

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 108

約数和(自身を含む): 60343920

約数和(自身を除く): 39046932

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 23, 34, 36, 46, 51, 68, 69, 89, 92, 102, 138, 153, 178, 204, 207, 267, 276, 289, 306, 356, 391, 414, 534, 578, 612, 782, 801, 828, 867, 1068, 1156, 1173, 1513, 1564, 1602, 1734, 2047, 2346, 2601, 3026, 3204, 3468, 3519, 4094, 4539, 4692, 5202, 6052, 6141, 6647, 7038, 8188, 9078, 10404, 12282, 13294, 13617, 14076, 18156, 18423, 19941, 24564, 25721, 26588, 27234, 34799, 36846, 39882, 51442, 54468, 59823, 69598, 73692, 77163, 79764, 102884, 104397, 119646, 139196, 154326, 208794, 231489, 239292, 308652, 313191, 417588, 462978, 591583, 626382, 925956, 1183166, 1252764, 1774749, 2366332, 3549498, 5324247, 7098996, 10648494, 21296988]

約数ペア:

[(1, 21296988), (2, 10648494), (3, 7098996), (4, 5324247), (6, 3549498), (9, 2366332), (12, 1774749), (17, 1252764), (18, 1183166), (23, 925956), (34, 626382), (36, 591583), (46, 462978), (51, 417588), (68, 313191), (69, 308652), (89, 239292), (92, 231489), (102, 208794), (138, 154326), (153, 139196), (178, 119646), (204, 104397), (207, 102884), (267, 79764), (276, 77163), (289, 73692), (306, 69598), (356, 59823), (391, 54468), (414, 51442), (534, 39882), (578, 36846), (612, 34799), (782, 27234), (801, 26588), (828, 25721), (867, 24564), (1068, 19941), (1156, 18423), (1173, 18156), (1513, 14076), (1564, 13617), (1602, 13294), (1734, 12282), (2047, 10404), (2346, 9078), (2601, 8188), (3026, 7038), (3204, 6647), (3468, 6141), (3519, 6052), (4094, 5202), (4539, 4692)]