21726810

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34487}}^1$

素因数の和:34507

約数の個数: 48

約数和(自身を含む): 64561536

約数和(自身を除く): 42834726

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34487, 68974, 103461, 172435, 206922, 241409, 310383, 344870, 482818, 517305, 620766, 724227, 1034610, 1207045, 1448454, 1551915, 2172681, 2414090, 3103830, 3621135, 4345362, 7242270, 10863405, 21726810]

約数ペア:

[(1, 21726810), (2, 10863405), (3, 7242270), (5, 4345362), (6, 3621135), (7, 3103830), (9, 2414090), (10, 2172681), (14, 1551915), (15, 1448454), (18, 1207045), (21, 1034610), (30, 724227), (35, 620766), (42, 517305), (45, 482818), (63, 344870), (70, 310383), (90, 241409), (105, 206922), (126, 172435), (210, 103461), (315, 68974), (630, 34487)]