21542010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5399}}^1$

素因数の和:5435

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 40665990

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 5399, 10798, 16197, 26995, 32394, 37793, 53990, 75586, 80985, 102581, 113379, 161970, 188965, 205162, 226758, 307743, 377930, 512905, 566895, 615486, 718067, 1025810, 1133790, 1436134, 1538715, 2154201, 3077430, 3590335, 4308402, 7180670, 10771005, 21542010]

約数ペア:

[(1, 21542010), (2, 10771005), (3, 7180670), (5, 4308402), (6, 3590335), (7, 3077430), (10, 2154201), (14, 1538715), (15, 1436134), (19, 1133790), (21, 1025810), (30, 718067), (35, 615486), (38, 566895), (42, 512905), (57, 377930), (70, 307743), (95, 226758), (105, 205162), (114, 188965), (133, 161970), (190, 113379), (210, 102581), (266, 80985), (285, 75586), (399, 53990), (570, 37793), (665, 32394), (798, 26995), (1330, 16197), (1995, 10798), (3990, 5399)]