21169476

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:761

約数の個数: 72

約数和(自身を含む): 57430464

約数和(自身を除く): 36260988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 37, 46, 69, 74, 92, 111, 138, 148, 207, 222, 276, 333, 414, 444, 666, 691, 828, 851, 1332, 1382, 1702, 2073, 2553, 2764, 3404, 4146, 5106, 6219, 7659, 8292, 10212, 12438, 15318, 15893, 24876, 25567, 30636, 31786, 47679, 51134, 63572, 76701, 95358, 102268, 143037, 153402, 190716, 230103, 286074, 306804, 460206, 572148, 588041, 920412, 1176082, 1764123, 2352164, 3528246, 5292369, 7056492, 10584738, 21169476]

約数ペア:

[(1, 21169476), (2, 10584738), (3, 7056492), (4, 5292369), (6, 3528246), (9, 2352164), (12, 1764123), (18, 1176082), (23, 920412), (36, 588041), (37, 572148), (46, 460206), (69, 306804), (74, 286074), (92, 230103), (111, 190716), (138, 153402), (148, 143037), (207, 102268), (222, 95358), (276, 76701), (333, 63572), (414, 51134), (444, 47679), (666, 31786), (691, 30636), (828, 25567), (851, 24876), (1332, 15893), (1382, 15318), (1702, 12438), (2073, 10212), (2553, 8292), (2764, 7659), (3404, 6219), (4146, 5106)]