21870150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:917

約数の個数: 48

約数和(自身を含む): 54573888

約数和(自身を除く): 32703738

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 211, 422, 633, 691, 1055, 1266, 1382, 2073, 2110, 3165, 3455, 4146, 5275, 6330, 6910, 10365, 10550, 15825, 17275, 20730, 31650, 34550, 51825, 103650, 145801, 291602, 437403, 729005, 874806, 1458010, 2187015, 3645025, 4374030, 7290050, 10935075, 21870150]

約数ペア:

[(1, 21870150), (2, 10935075), (3, 7290050), (5, 4374030), (6, 3645025), (10, 2187015), (15, 1458010), (25, 874806), (30, 729005), (50, 437403), (75, 291602), (150, 145801), (211, 103650), (422, 51825), (633, 34550), (691, 31650), (1055, 20730), (1266, 17275), (1382, 15825), (2073, 10550), (2110, 10365), (3165, 6910), (3455, 6330), (4146, 5275)]