21612870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 60046272

約数和(自身を除く): 38433402

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 53, 69, 90, 106, 115, 138, 159, 197, 207, 230, 265, 318, 345, 394, 414, 477, 530, 591, 690, 795, 954, 985, 1035, 1182, 1219, 1590, 1773, 1970, 2070, 2385, 2438, 2955, 3546, 3657, 4531, 4770, 5910, 6095, 7314, 8865, 9062, 10441, 10971, 12190, 13593, 17730, 18285, 20882, 21942, 22655, 27186, 31323, 36570, 40779, 45310, 52205, 54855, 62646, 67965, 81558, 93969, 104410, 109710, 135930, 156615, 187938, 203895, 240143, 313230, 407790, 469845, 480286, 720429, 939690, 1200715, 1440858, 2161287, 2401430, 3602145, 4322574, 7204290, 10806435, 21612870]

約数ペア:

[(1, 21612870), (2, 10806435), (3, 7204290), (5, 4322574), (6, 3602145), (9, 2401430), (10, 2161287), (15, 1440858), (18, 1200715), (23, 939690), (30, 720429), (45, 480286), (46, 469845), (53, 407790), (69, 313230), (90, 240143), (106, 203895), (115, 187938), (138, 156615), (159, 135930), (197, 109710), (207, 104410), (230, 93969), (265, 81558), (318, 67965), (345, 62646), (394, 54855), (414, 52205), (477, 45310), (530, 40779), (591, 36570), (690, 31323), (795, 27186), (954, 22655), (985, 21942), (1035, 20882), (1182, 18285), (1219, 17730), (1590, 13593), (1773, 12190), (1970, 10971), (2070, 10441), (2385, 9062), (2438, 8865), (2955, 7314), (3546, 6095), (3657, 5910), (4531, 4770)]