21000905719900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{373}}^1\times {\mathrm{3586159}}^1$

素因数の和:3586703

約数の個数: 72

約数和(自身を含む): 45985200578240

約数和(自身を除く): 24984294858340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 373, 628, 746, 785, 1492, 1570, 1865, 3140, 3730, 3925, 7460, 7850, 9325, 15700, 18650, 37300, 58561, 117122, 234244, 292805, 585610, 1171220, 1464025, 2928050, 3586159, 5856100, 7172318, 14344636, 17930795, 35861590, 71723180, 89653975, 179307950, 358615900, 563026963, 1126053926, 1337637307, 2252107852, 2675274614, 2815134815, 5350549228, 5630269630, 6688186535, 11260539260, 13376373070, 14075674075, 26752746140, 28151348150, 33440932675, 56302696300, 66881865350, 133763730700, 210009057199, 420018114398, 840036228796, 1050045285995, 2100090571990, 4200181143980, 5250226429975, 10500452859950, 21000905719900]

約数ペア:

[(1, 21000905719900), (2, 10500452859950), (4, 5250226429975), (5, 4200181143980), (10, 2100090571990), (20, 1050045285995), (25, 840036228796), (50, 420018114398), (100, 210009057199), (157, 133763730700), (314, 66881865350), (373, 56302696300), (628, 33440932675), (746, 28151348150), (785, 26752746140), (1492, 14075674075), (1570, 13376373070), (1865, 11260539260), (3140, 6688186535), (3730, 5630269630), (3925, 5350549228), (7460, 2815134815), (7850, 2675274614), (9325, 2252107852), (15700, 1337637307), (18650, 1126053926), (37300, 563026963), (58561, 358615900), (117122, 179307950), (234244, 89653975), (292805, 71723180), (585610, 35861590), (1171220, 17930795), (1464025, 14344636), (2928050, 7172318), (3586159, 5856100)]