21600756

素因数分解:

$2^2\times 3^5\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 57605184

約数和(自身を除く): 36004428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 81, 108, 142, 162, 213, 243, 284, 313, 324, 426, 486, 626, 639, 852, 939, 972, 1252, 1278, 1878, 1917, 2556, 2817, 3756, 3834, 5634, 5751, 7668, 8451, 11268, 11502, 16902, 17253, 22223, 23004, 25353, 33804, 34506, 44446, 50706, 66669, 69012, 76059, 88892, 101412, 133338, 152118, 200007, 266676, 304236, 400014, 600021, 800028, 1200042, 1800063, 2400084, 3600126, 5400189, 7200252, 10800378, 21600756]

約数ペア:

[(1, 21600756), (2, 10800378), (3, 7200252), (4, 5400189), (6, 3600126), (9, 2400084), (12, 1800063), (18, 1200042), (27, 800028), (36, 600021), (54, 400014), (71, 304236), (81, 266676), (108, 200007), (142, 152118), (162, 133338), (213, 101412), (243, 88892), (284, 76059), (313, 69012), (324, 66669), (426, 50706), (486, 44446), (626, 34506), (639, 33804), (852, 25353), (939, 23004), (972, 22223), (1252, 17253), (1278, 16902), (1878, 11502), (1917, 11268), (2556, 8451), (2817, 7668), (3756, 5751), (3834, 5634)]