21705630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:509

約数の個数: 64

約数和(自身を含む): 54907200

約数和(自身を除く): 33201570

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 61, 87, 122, 145, 174, 183, 290, 305, 366, 409, 435, 610, 818, 870, 915, 1227, 1769, 1830, 2045, 2454, 3538, 4090, 5307, 6135, 8845, 10614, 11861, 12270, 17690, 23722, 24949, 26535, 35583, 49898, 53070, 59305, 71166, 74847, 118610, 124745, 149694, 177915, 249490, 355830, 374235, 723521, 748470, 1447042, 2170563, 3617605, 4341126, 7235210, 10852815, 21705630]

約数ペア:

[(1, 21705630), (2, 10852815), (3, 7235210), (5, 4341126), (6, 3617605), (10, 2170563), (15, 1447042), (29, 748470), (30, 723521), (58, 374235), (61, 355830), (87, 249490), (122, 177915), (145, 149694), (174, 124745), (183, 118610), (290, 74847), (305, 71166), (366, 59305), (409, 53070), (435, 49898), (610, 35583), (818, 26535), (870, 24949), (915, 23722), (1227, 17690), (1769, 12270), (1830, 11861), (2045, 10614), (2454, 8845), (3538, 6135), (4090, 5307)]