21190260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3881}}^1$

素因数の和:3913

約数の個数: 96

約数和(自身を含む): 73043712

約数和(自身を除く): 51853452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3881, 5460, 7762, 11643, 15524, 19405, 23286, 27167, 38810, 46572, 50453, 54334, 58215, 77620, 81501, 100906, 108668, 116430, 135835, 151359, 163002, 201812, 232860, 252265, 271670, 302718, 326004, 353171, 407505, 504530, 543340, 605436, 706342, 756795, 815010, 1009060, 1059513, 1412684, 1513590, 1630020, 1765855, 2119026, 3027180, 3531710, 4238052, 5297565, 7063420, 10595130, 21190260]

約数ペア:

[(1, 21190260), (2, 10595130), (3, 7063420), (4, 5297565), (5, 4238052), (6, 3531710), (7, 3027180), (10, 2119026), (12, 1765855), (13, 1630020), (14, 1513590), (15, 1412684), (20, 1059513), (21, 1009060), (26, 815010), (28, 756795), (30, 706342), (35, 605436), (39, 543340), (42, 504530), (52, 407505), (60, 353171), (65, 326004), (70, 302718), (78, 271670), (84, 252265), (91, 232860), (105, 201812), (130, 163002), (140, 151359), (156, 135835), (182, 116430), (195, 108668), (210, 100906), (260, 81501), (273, 77620), (364, 58215), (390, 54334), (420, 50453), (455, 46572), (546, 38810), (780, 27167), (910, 23286), (1092, 19405), (1365, 15524), (1820, 11643), (2730, 7762), (3881, 5460)]