21876281104

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1\times {\mathrm{1297}}^1$

素因数の和:1928

約数の個数: 80

約数和(自身を含む): 45137378880

約数和(自身を除く): 23261097776

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 113, 152, 226, 304, 452, 491, 904, 982, 1297, 1808, 1964, 2147, 2594, 3928, 4294, 5188, 7856, 8588, 9329, 10376, 17176, 18658, 20752, 24643, 34352, 37316, 49286, 55483, 74632, 98572, 110966, 146561, 149264, 197144, 221932, 293122, 394288, 443864, 586244, 636827, 887728, 1054177, 1172488, 1273654, 2108354, 2344976, 2547308, 2784659, 4216708, 5094616, 5569318, 8433416, 10189232, 11138636, 12099713, 16866832, 22277272, 24199426, 44554544, 48398852, 71961451, 96797704, 143922902, 193595408, 287845804, 575691608, 1151383216, 1367267569, 2734535138, 5469070276, 10938140552, 21876281104]

約数ペア:

[(1, 21876281104), (2, 10938140552), (4, 5469070276), (8, 2734535138), (16, 1367267569), (19, 1151383216), (38, 575691608), (76, 287845804), (113, 193595408), (152, 143922902), (226, 96797704), (304, 71961451), (452, 48398852), (491, 44554544), (904, 24199426), (982, 22277272), (1297, 16866832), (1808, 12099713), (1964, 11138636), (2147, 10189232), (2594, 8433416), (3928, 5569318), (4294, 5094616), (5188, 4216708), (7856, 2784659), (8588, 2547308), (9329, 2344976), (10376, 2108354), (17176, 1273654), (18658, 1172488), (20752, 1054177), (24643, 887728), (34352, 636827), (37316, 586244), (49286, 443864), (55483, 394288), (74632, 293122), (98572, 221932), (110966, 197144), (146561, 149264)]