21357340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1601}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 48444480

約数和(自身を除く): 27087140

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1601, 2668, 3202, 3335, 6404, 6670, 8005, 13340, 16010, 32020, 36823, 46429, 73646, 92858, 147292, 184115, 185716, 232145, 368230, 464290, 736460, 928580, 1067867, 2135734, 4271468, 5339335, 10678670, 21357340]

約数ペア:

[(1, 21357340), (2, 10678670), (4, 5339335), (5, 4271468), (10, 2135734), (20, 1067867), (23, 928580), (29, 736460), (46, 464290), (58, 368230), (92, 232145), (115, 185716), (116, 184115), (145, 147292), (230, 92858), (290, 73646), (460, 46429), (580, 36823), (667, 32020), (1334, 16010), (1601, 13340), (2668, 8005), (3202, 6670), (3335, 6404)]