21138792

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 56179200

約数和(自身を除く): 35040408

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 151, 152, 228, 302, 307, 453, 456, 604, 614, 906, 921, 1208, 1228, 1812, 1842, 2456, 2869, 3624, 3684, 5738, 5833, 7368, 8607, 11476, 11666, 17214, 17499, 22952, 23332, 34428, 34998, 46357, 46664, 68856, 69996, 92714, 139071, 139992, 185428, 278142, 370856, 556284, 880783, 1112568, 1761566, 2642349, 3523132, 5284698, 7046264, 10569396, 21138792]

約数ペア:

[(1, 21138792), (2, 10569396), (3, 7046264), (4, 5284698), (6, 3523132), (8, 2642349), (12, 1761566), (19, 1112568), (24, 880783), (38, 556284), (57, 370856), (76, 278142), (114, 185428), (151, 139992), (152, 139071), (228, 92714), (302, 69996), (307, 68856), (453, 46664), (456, 46357), (604, 34998), (614, 34428), (906, 23332), (921, 22952), (1208, 17499), (1228, 17214), (1812, 11666), (1842, 11476), (2456, 8607), (2869, 7368), (3624, 5833), (3684, 5738)]