21378610008

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{74287}}^1$

素因数の和:74877

約数の個数: 96

約数和(自身を含む): 66288668160

約数和(自身を除く): 44910058152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 571, 1142, 1713, 2284, 3426, 3997, 4568, 5139, 6852, 7994, 10278, 11991, 13704, 15988, 20556, 23982, 31976, 35973, 41112, 47964, 71946, 74287, 95928, 143892, 148574, 222861, 287784, 297148, 445722, 520009, 594296, 668583, 891444, 1040018, 1337166, 1560027, 1782888, 2080036, 2674332, 3120054, 4160072, 4680081, 5348664, 6240108, 9360162, 12480216, 18720324, 37440648, 42417877, 84835754, 127253631, 169671508, 254507262, 296925139, 339343016, 381760893, 509014524, 593850278, 763521786, 890775417, 1018029048, 1187700556, 1527043572, 1781550834, 2375401112, 2672326251, 3054087144, 3563101668, 5344652502, 7126203336, 10689305004, 21378610008]

約数ペア:

[(1, 21378610008), (2, 10689305004), (3, 7126203336), (4, 5344652502), (6, 3563101668), (7, 3054087144), (8, 2672326251), (9, 2375401112), (12, 1781550834), (14, 1527043572), (18, 1187700556), (21, 1018029048), (24, 890775417), (28, 763521786), (36, 593850278), (42, 509014524), (56, 381760893), (63, 339343016), (72, 296925139), (84, 254507262), (126, 169671508), (168, 127253631), (252, 84835754), (504, 42417877), (571, 37440648), (1142, 18720324), (1713, 12480216), (2284, 9360162), (3426, 6240108), (3997, 5348664), (4568, 4680081), (5139, 4160072), (6852, 3120054), (7994, 2674332), (10278, 2080036), (11991, 1782888), (13704, 1560027), (15988, 1337166), (20556, 1040018), (23982, 891444), (31976, 668583), (35973, 594296), (41112, 520009), (47964, 445722), (71946, 297148), (74287, 287784), (95928, 222861), (143892, 148574)]