21329910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33857}}^1$

素因数の和:33877

約数の個数: 48

約数和(自身を含む): 63382176

約数和(自身を除く): 42052266

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, 33857, 67714, 101571, 169285, 203142, 236999, 304713, 338570, 473998, 507855, 609426, 710997, 1015710, 1184995, 1421994, 1523565, 2132991, 2369990, 3047130, 3554985, 4265982, 7109970, 10664955, 21329910]

約数ペア:

[(1, 21329910), (2, 10664955), (3, 7109970), (5, 4265982), (6, 3554985), (7, 3047130), (9, 2369990), (10, 2132991), (14, 1523565), (15, 1421994), (18, 1184995), (21, 1015710), (30, 710997), (35, 609426), (42, 507855), (45, 473998), (63, 338570), (70, 304713), (90, 236999), (105, 203142), (126, 169285), (210, 101571), (315, 67714), (630, 33857)]