21390696

素因数分解:

$2^3\times 3^3\times {\mathrm{167}}^1\times {\mathrm{593}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 38484504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 167, 216, 334, 501, 593, 668, 1002, 1186, 1336, 1503, 1779, 2004, 2372, 3006, 3558, 4008, 4509, 4744, 5337, 6012, 7116, 9018, 10674, 12024, 14232, 16011, 18036, 21348, 32022, 36072, 42696, 64044, 99031, 128088, 198062, 297093, 396124, 594186, 792248, 891279, 1188372, 1782558, 2376744, 2673837, 3565116, 5347674, 7130232, 10695348, 21390696]

約数ペア:

[(1, 21390696), (2, 10695348), (3, 7130232), (4, 5347674), (6, 3565116), (8, 2673837), (9, 2376744), (12, 1782558), (18, 1188372), (24, 891279), (27, 792248), (36, 594186), (54, 396124), (72, 297093), (108, 198062), (167, 128088), (216, 99031), (334, 64044), (501, 42696), (593, 36072), (668, 32022), (1002, 21348), (1186, 18036), (1336, 16011), (1503, 14232), (1779, 12024), (2004, 10674), (2372, 9018), (3006, 7116), (3558, 6012), (4008, 5337), (4509, 4744)]