21729380060

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1301}}^1\times {\mathrm{19421}}^1$

素因数の和:20774

約数の個数: 48

約数和(自身を含む): 46731196512

約数和(自身を除く): 25001816452

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1301, 2602, 5204, 6505, 13010, 19421, 26020, 38842, 55943, 77684, 97105, 111886, 194210, 223772, 279715, 388420, 559430, 835103, 1118860, 1670206, 3340412, 4175515, 8351030, 16702060, 25266721, 50533442, 101066884, 126333605, 252667210, 505334420, 1086469003, 2172938006, 4345876012, 5432345015, 10864690030, 21729380060]

約数ペア:

[(1, 21729380060), (2, 10864690030), (4, 5432345015), (5, 4345876012), (10, 2172938006), (20, 1086469003), (43, 505334420), (86, 252667210), (172, 126333605), (215, 101066884), (430, 50533442), (860, 25266721), (1301, 16702060), (2602, 8351030), (5204, 4175515), (6505, 3340412), (13010, 1670206), (19421, 1118860), (26020, 835103), (38842, 559430), (55943, 388420), (77684, 279715), (97105, 223772), (111886, 194210)]