21397592830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{4129}}^1$

素因数の和:4469

約数の個数: 64

約数和(自身を含む): 40488537600

約数和(自身を除く): 19090944770

約数列:

[1, 2, 5, 10, 31, 62, 73, 146, 155, 229, 310, 365, 458, 730, 1145, 2263, 2290, 4129, 4526, 7099, 8258, 11315, 14198, 16717, 20645, 22630, 33434, 35495, 41290, 70990, 83585, 127999, 167170, 255998, 301417, 518227, 602834, 639995, 945541, 1036454, 1279990, 1507085, 1891082, 2591135, 3014170, 4727705, 5182270, 9343927, 9455410, 18687854, 29311771, 46719635, 58623542, 69024493, 93439270, 138048986, 146558855, 293117710, 345122465, 690244930, 2139759283, 4279518566, 10698796415, 21397592830]

約数ペア:

[(1, 21397592830), (2, 10698796415), (5, 4279518566), (10, 2139759283), (31, 690244930), (62, 345122465), (73, 293117710), (146, 146558855), (155, 138048986), (229, 93439270), (310, 69024493), (365, 58623542), (458, 46719635), (730, 29311771), (1145, 18687854), (2263, 9455410), (2290, 9343927), (4129, 5182270), (4526, 4727705), (7099, 3014170), (8258, 2591135), (11315, 1891082), (14198, 1507085), (16717, 1279990), (20645, 1036454), (22630, 945541), (33434, 639995), (35495, 602834), (41290, 518227), (70990, 301417), (83585, 255998), (127999, 167170)]