21488130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8233}}^1$

素因数の和:8275

約数の個数: 48

約数和(自身を含む): 57802680

約数和(自身を除く): 36314550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 8233, 16466, 24699, 41165, 49398, 74097, 82330, 123495, 148194, 238757, 246990, 370485, 477514, 716271, 740970, 1193785, 1432542, 2148813, 2387570, 3581355, 4297626, 7162710, 10744065, 21488130]

約数ペア:

[(1, 21488130), (2, 10744065), (3, 7162710), (5, 4297626), (6, 3581355), (9, 2387570), (10, 2148813), (15, 1432542), (18, 1193785), (29, 740970), (30, 716271), (45, 477514), (58, 370485), (87, 246990), (90, 238757), (145, 148194), (174, 123495), (261, 82330), (290, 74097), (435, 49398), (522, 41165), (870, 24699), (1305, 16466), (2610, 8233)]