21398712

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 56851200

約数和(自身を除く): 35452488

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 167, 228, 281, 334, 456, 501, 562, 668, 843, 1002, 1124, 1336, 1686, 2004, 2248, 3173, 3372, 4008, 5339, 6346, 6744, 9519, 10678, 12692, 16017, 19038, 21356, 25384, 32034, 38076, 42712, 46927, 64068, 76152, 93854, 128136, 140781, 187708, 281562, 375416, 563124, 891613, 1126248, 1783226, 2674839, 3566452, 5349678, 7132904, 10699356, 21398712]

約数ペア:

[(1, 21398712), (2, 10699356), (3, 7132904), (4, 5349678), (6, 3566452), (8, 2674839), (12, 1783226), (19, 1126248), (24, 891613), (38, 563124), (57, 375416), (76, 281562), (114, 187708), (152, 140781), (167, 128136), (228, 93854), (281, 76152), (334, 64068), (456, 46927), (501, 42712), (562, 38076), (668, 32034), (843, 25384), (1002, 21356), (1124, 19038), (1336, 16017), (1686, 12692), (2004, 10678), (2248, 9519), (3173, 6744), (3372, 6346), (4008, 5339)]