21859956

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 62203680

約数和(自身を除く): 40343724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 53, 54, 57, 67, 76, 81, 106, 108, 114, 134, 159, 162, 171, 201, 212, 228, 268, 318, 324, 342, 402, 477, 513, 603, 636, 684, 804, 954, 1007, 1026, 1206, 1273, 1431, 1539, 1809, 1908, 2014, 2052, 2412, 2546, 2862, 3021, 3078, 3551, 3618, 3819, 4028, 4293, 5092, 5427, 5724, 6042, 6156, 7102, 7236, 7638, 8586, 9063, 10653, 10854, 11457, 12084, 14204, 15276, 17172, 18126, 21306, 21708, 22914, 27189, 31959, 34371, 36252, 42612, 45828, 54378, 63918, 67469, 68742, 81567, 95877, 103113, 108756, 127836, 134938, 137484, 163134, 191754, 202407, 206226, 269876, 287631, 326268, 383508, 404814, 412452, 575262, 607221, 809628, 1150524, 1214442, 1821663, 2428884, 3643326, 5464989, 7286652, 10929978, 21859956]

約数ペア:

[(1, 21859956), (2, 10929978), (3, 7286652), (4, 5464989), (6, 3643326), (9, 2428884), (12, 1821663), (18, 1214442), (19, 1150524), (27, 809628), (36, 607221), (38, 575262), (53, 412452), (54, 404814), (57, 383508), (67, 326268), (76, 287631), (81, 269876), (106, 206226), (108, 202407), (114, 191754), (134, 163134), (159, 137484), (162, 134938), (171, 127836), (201, 108756), (212, 103113), (228, 95877), (268, 81567), (318, 68742), (324, 67469), (342, 63918), (402, 54378), (477, 45828), (513, 42612), (603, 36252), (636, 34371), (684, 31959), (804, 27189), (954, 22914), (1007, 21708), (1026, 21306), (1206, 18126), (1273, 17172), (1431, 15276), (1539, 14204), (1809, 12084), (1908, 11457), (2014, 10854), (2052, 10653), (2412, 9063), (2546, 8586), (2862, 7638), (3021, 7236), (3078, 7102), (3551, 6156), (3618, 6042), (3819, 5724), (4028, 5427), (4293, 5092)]