21670254

素因数分解:

$2^1\times 3^6\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:276

約数の個数: 56

約数和(自身を含む): 49578480

約数和(自身を除く): 27908226

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 89, 162, 167, 178, 243, 267, 334, 486, 501, 534, 729, 801, 1002, 1458, 1503, 1602, 2403, 3006, 4509, 4806, 7209, 9018, 13527, 14418, 14863, 21627, 27054, 29726, 40581, 43254, 44589, 64881, 81162, 89178, 121743, 129762, 133767, 243486, 267534, 401301, 802602, 1203903, 2407806, 3611709, 7223418, 10835127, 21670254]

約数ペア:

[(1, 21670254), (2, 10835127), (3, 7223418), (6, 3611709), (9, 2407806), (18, 1203903), (27, 802602), (54, 401301), (81, 267534), (89, 243486), (162, 133767), (167, 129762), (178, 121743), (243, 89178), (267, 81162), (334, 64881), (486, 44589), (501, 43254), (534, 40581), (729, 29726), (801, 27054), (1002, 21627), (1458, 14863), (1503, 14418), (1602, 13527), (2403, 9018), (3006, 7209), (4509, 4806)]