221298948

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{929}}^1$

素因数の和:1461

約数の個数: 72

約数和(自身を含む): 604258200

約数和(自身を除く): 382959252

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 509, 929, 1018, 1527, 1858, 2036, 2787, 3054, 3716, 4581, 5574, 6108, 6617, 8361, 9162, 11148, 12077, 13234, 16722, 18324, 19851, 24154, 26468, 33444, 36231, 39702, 48308, 59553, 72462, 79404, 108693, 119106, 144924, 217386, 238212, 434772, 472861, 945722, 1418583, 1891444, 2837166, 4255749, 5674332, 6147193, 8511498, 12294386, 17022996, 18441579, 24588772, 36883158, 55324737, 73766316, 110649474, 221298948]

約数ペア:

[(1, 221298948), (2, 110649474), (3, 73766316), (4, 55324737), (6, 36883158), (9, 24588772), (12, 18441579), (13, 17022996), (18, 12294386), (26, 8511498), (36, 6147193), (39, 5674332), (52, 4255749), (78, 2837166), (117, 1891444), (156, 1418583), (234, 945722), (468, 472861), (509, 434772), (929, 238212), (1018, 217386), (1527, 144924), (1858, 119106), (2036, 108693), (2787, 79404), (3054, 72462), (3716, 59553), (4581, 48308), (5574, 39702), (6108, 36231), (6617, 33444), (8361, 26468), (9162, 24154), (11148, 19851), (12077, 18324), (13234, 16722)]