21164208

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{2609}}^1$

素因数の和:2646

約数の個数: 60

約数和(自身を含む): 59226120

約数和(自身を除く): 38061912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 169, 208, 312, 338, 507, 624, 676, 1014, 1352, 2028, 2609, 2704, 4056, 5218, 7827, 8112, 10436, 15654, 20872, 31308, 33917, 41744, 62616, 67834, 101751, 125232, 135668, 203502, 271336, 407004, 440921, 542672, 814008, 881842, 1322763, 1628016, 1763684, 2645526, 3527368, 5291052, 7054736, 10582104, 21164208]

約数ペア:

[(1, 21164208), (2, 10582104), (3, 7054736), (4, 5291052), (6, 3527368), (8, 2645526), (12, 1763684), (13, 1628016), (16, 1322763), (24, 881842), (26, 814008), (39, 542672), (48, 440921), (52, 407004), (78, 271336), (104, 203502), (156, 135668), (169, 125232), (208, 101751), (312, 67834), (338, 62616), (507, 41744), (624, 33917), (676, 31308), (1014, 20872), (1352, 15654), (2028, 10436), (2609, 8112), (2704, 7827), (4056, 5218)]