20854314

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 50830080

約数和(自身を除く): 29975766

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 61, 78, 117, 122, 183, 234, 351, 366, 487, 549, 702, 793, 974, 1098, 1461, 1586, 1647, 2379, 2922, 3294, 4383, 4758, 6331, 7137, 8766, 12662, 13149, 14274, 18993, 21411, 26298, 29707, 37986, 42822, 56979, 59414, 89121, 113958, 170937, 178242, 267363, 341874, 386191, 534726, 772382, 802089, 1158573, 1604178, 2317146, 3475719, 6951438, 10427157, 20854314]

約数ペア:

[(1, 20854314), (2, 10427157), (3, 6951438), (6, 3475719), (9, 2317146), (13, 1604178), (18, 1158573), (26, 802089), (27, 772382), (39, 534726), (54, 386191), (61, 341874), (78, 267363), (117, 178242), (122, 170937), (183, 113958), (234, 89121), (351, 59414), (366, 56979), (487, 42822), (549, 37986), (702, 29707), (793, 26298), (974, 21411), (1098, 18993), (1461, 14274), (1586, 13149), (1647, 12662), (2379, 8766), (2922, 7137), (3294, 6331), (4383, 4758)]