21913218

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 49510656

約数和(自身を除く): 27597438

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 173, 186, 227, 279, 346, 454, 519, 558, 681, 1038, 1362, 1557, 2043, 3114, 4086, 5363, 7037, 10726, 14074, 16089, 21111, 32178, 39271, 42222, 48267, 63333, 78542, 96534, 117813, 126666, 235626, 353439, 706878, 1217401, 2434802, 3652203, 7304406, 10956609, 21913218]

約数ペア:

[(1, 21913218), (2, 10956609), (3, 7304406), (6, 3652203), (9, 2434802), (18, 1217401), (31, 706878), (62, 353439), (93, 235626), (173, 126666), (186, 117813), (227, 96534), (279, 78542), (346, 63333), (454, 48267), (519, 42222), (558, 39271), (681, 32178), (1038, 21111), (1362, 16089), (1557, 14074), (2043, 10726), (3114, 7037), (4086, 5363)]