21872370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3299}}^1$

素因数の和:3339

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 38002830

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3299, 3315, 6598, 6630, 9897, 16495, 19794, 32990, 42887, 49485, 56083, 85774, 98970, 112166, 128661, 168249, 214435, 257322, 280415, 336498, 428870, 560830, 643305, 729079, 841245, 1286610, 1458158, 1682490, 2187237, 3645395, 4374474, 7290790, 10936185, 21872370]

約数ペア:

[(1, 21872370), (2, 10936185), (3, 7290790), (5, 4374474), (6, 3645395), (10, 2187237), (13, 1682490), (15, 1458158), (17, 1286610), (26, 841245), (30, 729079), (34, 643305), (39, 560830), (51, 428870), (65, 336498), (78, 280415), (85, 257322), (102, 214435), (130, 168249), (170, 128661), (195, 112166), (221, 98970), (255, 85774), (390, 56083), (442, 49485), (510, 42887), (663, 32990), (1105, 19794), (1326, 16495), (2210, 9897), (3299, 6630), (3315, 6598)]