21537530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{983}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 44492544

約数和(自身を除く): 22955014

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 313, 626, 983, 1565, 1966, 2191, 3130, 4382, 4915, 6881, 9830, 10955, 13762, 21910, 34405, 68810, 307679, 615358, 1538395, 2153753, 3076790, 4307506, 10768765, 21537530]

約数ペア:

[(1, 21537530), (2, 10768765), (5, 4307506), (7, 3076790), (10, 2153753), (14, 1538395), (35, 615358), (70, 307679), (313, 68810), (626, 34405), (983, 21910), (1565, 13762), (1966, 10955), (2191, 9830), (3130, 6881), (4382, 4915)]