21729105970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1\times {\mathrm{15649}}^1$

素因数の和:16651

約数の個数: 64

約数和(自身を含む): 46000483200

約数和(自身を除く): 24271377230

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 971, 1430, 1942, 4855, 9710, 10681, 12623, 15649, 21362, 25246, 31298, 53405, 63115, 78245, 106810, 126230, 138853, 156490, 172139, 203437, 277706, 344278, 406874, 694265, 860695, 1017185, 1388530, 1721390, 2034370, 2237807, 4475614, 11189035, 15195179, 22378070, 30390358, 75975895, 151951790, 167146969, 197537327, 334293938, 395074654, 835734845, 987686635, 1671469690, 1975373270, 2172910597, 4345821194, 10864552985, 21729105970]

約数ペア:

[(1, 21729105970), (2, 10864552985), (5, 4345821194), (10, 2172910597), (11, 1975373270), (13, 1671469690), (22, 987686635), (26, 835734845), (55, 395074654), (65, 334293938), (110, 197537327), (130, 167146969), (143, 151951790), (286, 75975895), (715, 30390358), (971, 22378070), (1430, 15195179), (1942, 11189035), (4855, 4475614), (9710, 2237807), (10681, 2034370), (12623, 1721390), (15649, 1388530), (21362, 1017185), (25246, 860695), (31298, 694265), (53405, 406874), (63115, 344278), (78245, 277706), (106810, 203437), (126230, 172139), (138853, 156490)]