21734440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{853}}^1$

素因数の和:891

約数の個数: 96

約数和(自身を含む): 61334280

約数和(自身を除く): 39599840

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 853, 910, 980, 1274, 1706, 1820, 1960, 2548, 3185, 3412, 3640, 4265, 5096, 5971, 6370, 6824, 8530, 11089, 11942, 12740, 17060, 22178, 23884, 25480, 29855, 34120, 41797, 44356, 47768, 55445, 59710, 77623, 83594, 88712, 110890, 119420, 155246, 167188, 208985, 221780, 238840, 310492, 334376, 388115, 417970, 443560, 543361, 620984, 776230, 835940, 1086722, 1552460, 1671880, 2173444, 2716805, 3104920, 4346888, 5433610, 10867220, 21734440]

約数ペア:

[(1, 21734440), (2, 10867220), (4, 5433610), (5, 4346888), (7, 3104920), (8, 2716805), (10, 2173444), (13, 1671880), (14, 1552460), (20, 1086722), (26, 835940), (28, 776230), (35, 620984), (40, 543361), (49, 443560), (52, 417970), (56, 388115), (65, 334376), (70, 310492), (91, 238840), (98, 221780), (104, 208985), (130, 167188), (140, 155246), (182, 119420), (196, 110890), (245, 88712), (260, 83594), (280, 77623), (364, 59710), (392, 55445), (455, 47768), (490, 44356), (520, 41797), (637, 34120), (728, 29855), (853, 25480), (910, 23884), (980, 22178), (1274, 17060), (1706, 12740), (1820, 11942), (1960, 11089), (2548, 8530), (3185, 6824), (3412, 6370), (3640, 5971), (4265, 5096)]