21239160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{467}}^1$

素因数の和:860

約数の個数: 64

約数和(自身を含む): 64022400

約数和(自身を除く): 42783240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 379, 467, 758, 934, 1137, 1401, 1516, 1868, 1895, 2274, 2335, 2802, 3032, 3736, 3790, 4548, 4670, 5604, 5685, 7005, 7580, 9096, 9340, 11208, 11370, 14010, 15160, 18680, 22740, 28020, 45480, 56040, 176993, 353986, 530979, 707972, 884965, 1061958, 1415944, 1769930, 2123916, 2654895, 3539860, 4247832, 5309790, 7079720, 10619580, 21239160]

約数ペア:

[(1, 21239160), (2, 10619580), (3, 7079720), (4, 5309790), (5, 4247832), (6, 3539860), (8, 2654895), (10, 2123916), (12, 1769930), (15, 1415944), (20, 1061958), (24, 884965), (30, 707972), (40, 530979), (60, 353986), (120, 176993), (379, 56040), (467, 45480), (758, 28020), (934, 22740), (1137, 18680), (1401, 15160), (1516, 14010), (1868, 11370), (1895, 11208), (2274, 9340), (2335, 9096), (2802, 7580), (3032, 7005), (3736, 5685), (3790, 5604), (4548, 4670)]