21300318

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 50044176

約数和(自身を除く): 28743858

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 227, 234, 401, 454, 681, 802, 1203, 1362, 2043, 2406, 2951, 3609, 4086, 5213, 5902, 7218, 8853, 10426, 15639, 17706, 26559, 31278, 46917, 53118, 91027, 93834, 182054, 273081, 546162, 819243, 1183351, 1638486, 2366702, 3550053, 7100106, 10650159, 21300318]

約数ペア:

[(1, 21300318), (2, 10650159), (3, 7100106), (6, 3550053), (9, 2366702), (13, 1638486), (18, 1183351), (26, 819243), (39, 546162), (78, 273081), (117, 182054), (227, 93834), (234, 91027), (401, 53118), (454, 46917), (681, 31278), (802, 26559), (1203, 17706), (1362, 15639), (2043, 10426), (2406, 8853), (2951, 7218), (3609, 5902), (4086, 5213)]