21634970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:747

約数の個数: 48

約数和(自身を含む): 46046880

約数和(自身を除く): 24411910

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 67, 70, 98, 134, 245, 335, 469, 490, 659, 670, 938, 1318, 2345, 3283, 3295, 4613, 4690, 6566, 6590, 9226, 16415, 23065, 32291, 32830, 44153, 46130, 64582, 88306, 161455, 220765, 309071, 322910, 441530, 618142, 1545355, 2163497, 3090710, 4326994, 10817485, 21634970]

約数ペア:

[(1, 21634970), (2, 10817485), (5, 4326994), (7, 3090710), (10, 2163497), (14, 1545355), (35, 618142), (49, 441530), (67, 322910), (70, 309071), (98, 220765), (134, 161455), (245, 88306), (335, 64582), (469, 46130), (490, 44153), (659, 32830), (670, 32291), (938, 23065), (1318, 16415), (2345, 9226), (3283, 6590), (3295, 6566), (4613, 4690)]