21389070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 53729280

約数和(自身を除く): 32340210

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 109, 155, 186, 211, 218, 310, 327, 422, 465, 545, 633, 654, 930, 1055, 1090, 1266, 1635, 2110, 3165, 3270, 3379, 6330, 6541, 6758, 10137, 13082, 16895, 19623, 20274, 22999, 32705, 33790, 39246, 45998, 50685, 65410, 68997, 98115, 101370, 114995, 137994, 196230, 229990, 344985, 689970, 712969, 1425938, 2138907, 3564845, 4277814, 7129690, 10694535, 21389070]

約数ペア:

[(1, 21389070), (2, 10694535), (3, 7129690), (5, 4277814), (6, 3564845), (10, 2138907), (15, 1425938), (30, 712969), (31, 689970), (62, 344985), (93, 229990), (109, 196230), (155, 137994), (186, 114995), (211, 101370), (218, 98115), (310, 68997), (327, 65410), (422, 50685), (465, 45998), (545, 39246), (633, 33790), (654, 32705), (930, 22999), (1055, 20274), (1090, 19623), (1266, 16895), (1635, 13082), (2110, 10137), (3165, 6758), (3270, 6541), (3379, 6330)]