21212040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3761}}^1$

素因数の和:3822

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 43795320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3761, 5640, 7522, 11283, 15044, 18805, 22566, 30088, 37610, 45132, 56415, 75220, 90264, 112830, 150440, 176767, 225660, 353534, 451320, 530301, 707068, 883835, 1060602, 1414136, 1767670, 2121204, 2651505, 3535340, 4242408, 5303010, 7070680, 10606020, 21212040]

約数ペア:

[(1, 21212040), (2, 10606020), (3, 7070680), (4, 5303010), (5, 4242408), (6, 3535340), (8, 2651505), (10, 2121204), (12, 1767670), (15, 1414136), (20, 1060602), (24, 883835), (30, 707068), (40, 530301), (47, 451320), (60, 353534), (94, 225660), (120, 176767), (141, 150440), (188, 112830), (235, 90264), (282, 75220), (376, 56415), (470, 45132), (564, 37610), (705, 30088), (940, 22566), (1128, 18805), (1410, 15044), (1880, 11283), (2820, 7522), (3761, 5640)]