21471210

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{283}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 57663360

約数和(自身を除く): 36192150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 281, 283, 562, 566, 843, 849, 1405, 1415, 1686, 1698, 2529, 2547, 2810, 2830, 4215, 4245, 5058, 5094, 7587, 7641, 8430, 8490, 12645, 12735, 15174, 15282, 25290, 25470, 37935, 38205, 75870, 76410, 79523, 159046, 238569, 397615, 477138, 715707, 795230, 1192845, 1431414, 2147121, 2385690, 3578535, 4294242, 7157070, 10735605, 21471210]

約数ペア:

[(1, 21471210), (2, 10735605), (3, 7157070), (5, 4294242), (6, 3578535), (9, 2385690), (10, 2147121), (15, 1431414), (18, 1192845), (27, 795230), (30, 715707), (45, 477138), (54, 397615), (90, 238569), (135, 159046), (270, 79523), (281, 76410), (283, 75870), (562, 38205), (566, 37935), (843, 25470), (849, 25290), (1405, 15282), (1415, 15174), (1686, 12735), (1698, 12645), (2529, 8490), (2547, 8430), (2810, 7641), (2830, 7587), (4215, 5094), (4245, 5058)]