21559356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6581}}^1$

素因数の和:6611

約数の個数: 72

約数和(自身を含む): 67083744

約数和(自身を除く): 45524388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6581, 13162, 19743, 26324, 39486, 46067, 59229, 78972, 85553, 92134, 118458, 138201, 171106, 184268, 236916, 256659, 276402, 342212, 414603, 513318, 552804, 598871, 769977, 829206, 1026636, 1197742, 1539954, 1658412, 1796613, 2395484, 3079908, 3593226, 5389839, 7186452, 10779678, 21559356]

約数ペア:

[(1, 21559356), (2, 10779678), (3, 7186452), (4, 5389839), (6, 3593226), (7, 3079908), (9, 2395484), (12, 1796613), (13, 1658412), (14, 1539954), (18, 1197742), (21, 1026636), (26, 829206), (28, 769977), (36, 598871), (39, 552804), (42, 513318), (52, 414603), (63, 342212), (78, 276402), (84, 256659), (91, 236916), (117, 184268), (126, 171106), (156, 138201), (182, 118458), (234, 92134), (252, 85553), (273, 78972), (364, 59229), (468, 46067), (546, 39486), (819, 26324), (1092, 19743), (1638, 13162), (3276, 6581)]