21000891282

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{17581}}^1$

素因数の和:17856

約数の個数: 96

約数和(自身を含む): 51952700160

約数和(自身を除く): 30951808878

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 239, 294, 357, 478, 714, 717, 833, 1434, 1666, 1673, 2499, 3346, 4063, 4998, 5019, 8126, 10038, 11711, 12189, 17581, 23422, 24378, 28441, 35133, 35162, 52743, 56882, 70266, 85323, 105486, 123067, 170646, 199087, 246134, 298877, 369201, 398174, 597261, 597754, 738402, 861469, 896631, 1194522, 1722938, 1793262, 2092139, 2584407, 4184278, 4201859, 5168814, 6276417, 8403718, 12552834, 12605577, 14644973, 25211154, 29289946, 29413013, 43934919, 58826026, 71431603, 87869838, 88239039, 142863206, 176478078, 205891091, 214294809, 411782182, 428589618, 500021221, 617673273, 1000042442, 1235346546, 1500063663, 3000127326, 3500148547, 7000297094, 10500445641, 21000891282]

約数ペア:

[(1, 21000891282), (2, 10500445641), (3, 7000297094), (6, 3500148547), (7, 3000127326), (14, 1500063663), (17, 1235346546), (21, 1000042442), (34, 617673273), (42, 500021221), (49, 428589618), (51, 411782182), (98, 214294809), (102, 205891091), (119, 176478078), (147, 142863206), (238, 88239039), (239, 87869838), (294, 71431603), (357, 58826026), (478, 43934919), (714, 29413013), (717, 29289946), (833, 25211154), (1434, 14644973), (1666, 12605577), (1673, 12552834), (2499, 8403718), (3346, 6276417), (4063, 5168814), (4998, 4201859), (5019, 4184278), (8126, 2584407), (10038, 2092139), (11711, 1793262), (12189, 1722938), (17581, 1194522), (23422, 896631), (24378, 861469), (28441, 738402), (35133, 597754), (35162, 597261), (52743, 398174), (56882, 369201), (70266, 298877), (85323, 246134), (105486, 199087), (123067, 170646)]