21451926

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 47824128

約数和(自身を除く): 26372202

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 67, 73, 86, 102, 129, 134, 146, 201, 219, 258, 402, 438, 731, 1139, 1241, 1462, 2193, 2278, 2482, 2881, 3139, 3417, 3723, 4386, 4891, 5762, 6278, 6834, 7446, 8643, 9417, 9782, 14673, 17286, 18834, 29346, 48977, 53363, 83147, 97954, 106726, 146931, 160089, 166294, 210313, 249441, 293862, 320178, 420626, 498882, 630939, 1261878, 3575321, 7150642, 10725963, 21451926]

約数ペア:

[(1, 21451926), (2, 10725963), (3, 7150642), (6, 3575321), (17, 1261878), (34, 630939), (43, 498882), (51, 420626), (67, 320178), (73, 293862), (86, 249441), (102, 210313), (129, 166294), (134, 160089), (146, 146931), (201, 106726), (219, 97954), (258, 83147), (402, 53363), (438, 48977), (731, 29346), (1139, 18834), (1241, 17286), (1462, 14673), (2193, 9782), (2278, 9417), (2482, 8643), (2881, 7446), (3139, 6834), (3417, 6278), (3723, 5762), (4386, 4891)]