21986040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9643}}^1$

素因数の和:9676

約数の個数: 64

約数和(自身を含む): 69436800

約数和(自身を除く): 47450760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9643, 19286, 28929, 38572, 48215, 57858, 77144, 96430, 115716, 144645, 183217, 192860, 231432, 289290, 366434, 385720, 549651, 578580, 732868, 916085, 1099302, 1157160, 1465736, 1832170, 2198604, 2748255, 3664340, 4397208, 5496510, 7328680, 10993020, 21986040]

約数ペア:

[(1, 21986040), (2, 10993020), (3, 7328680), (4, 5496510), (5, 4397208), (6, 3664340), (8, 2748255), (10, 2198604), (12, 1832170), (15, 1465736), (19, 1157160), (20, 1099302), (24, 916085), (30, 732868), (38, 578580), (40, 549651), (57, 385720), (60, 366434), (76, 289290), (95, 231432), (114, 192860), (120, 183217), (152, 144645), (190, 115716), (228, 96430), (285, 77144), (380, 57858), (456, 48215), (570, 38572), (760, 28929), (1140, 19286), (2280, 9643)]