21678060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:483

約数の個数: 96

約数和(自身を含む): 65644992

約数和(自身を除く): 43966932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 53, 60, 68, 85, 102, 106, 159, 170, 204, 212, 255, 265, 318, 340, 401, 510, 530, 636, 795, 802, 901, 1020, 1060, 1203, 1590, 1604, 1802, 2005, 2406, 2703, 3180, 3604, 4010, 4505, 4812, 5406, 6015, 6817, 8020, 9010, 10812, 12030, 13515, 13634, 18020, 20451, 21253, 24060, 27030, 27268, 34085, 40902, 42506, 54060, 63759, 68170, 81804, 85012, 102255, 106265, 127518, 136340, 204510, 212530, 255036, 318795, 361301, 409020, 425060, 637590, 722602, 1083903, 1275180, 1445204, 1806505, 2167806, 3613010, 4335612, 5419515, 7226020, 10839030, 21678060]

約数ペア:

[(1, 21678060), (2, 10839030), (3, 7226020), (4, 5419515), (5, 4335612), (6, 3613010), (10, 2167806), (12, 1806505), (15, 1445204), (17, 1275180), (20, 1083903), (30, 722602), (34, 637590), (51, 425060), (53, 409020), (60, 361301), (68, 318795), (85, 255036), (102, 212530), (106, 204510), (159, 136340), (170, 127518), (204, 106265), (212, 102255), (255, 85012), (265, 81804), (318, 68170), (340, 63759), (401, 54060), (510, 42506), (530, 40902), (636, 34085), (795, 27268), (802, 27030), (901, 24060), (1020, 21253), (1060, 20451), (1203, 18020), (1590, 13634), (1604, 13515), (1802, 12030), (2005, 10812), (2406, 9010), (2703, 8020), (3180, 6817), (3604, 6015), (4010, 5406), (4505, 4812)]