21242670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4093}}^1$

素因数の和:4276

約数の個数: 32

約数和(自身を含む): 51289632

約数和(自身を除く): 30046962

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 173, 346, 519, 865, 1038, 1730, 2595, 4093, 5190, 8186, 12279, 20465, 24558, 40930, 61395, 122790, 708089, 1416178, 2124267, 3540445, 4248534, 7080890, 10621335, 21242670]

約数ペア:

[(1, 21242670), (2, 10621335), (3, 7080890), (5, 4248534), (6, 3540445), (10, 2124267), (15, 1416178), (30, 708089), (173, 122790), (346, 61395), (519, 40930), (865, 24558), (1038, 20465), (1730, 12279), (2595, 8186), (4093, 5190)]