21208104

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:487

約数の個数: 96

約数和(自身を含む): 62244000

約数和(自身を除く): 41035896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 37, 38, 57, 72, 74, 76, 111, 114, 148, 152, 171, 222, 228, 296, 333, 342, 419, 444, 456, 666, 684, 703, 838, 888, 1257, 1332, 1368, 1406, 1676, 2109, 2514, 2664, 2812, 3352, 3771, 4218, 5028, 5624, 6327, 7542, 7961, 8436, 10056, 12654, 15084, 15503, 15922, 16872, 23883, 25308, 30168, 31006, 31844, 46509, 47766, 50616, 62012, 63688, 71649, 93018, 95532, 124024, 139527, 143298, 186036, 191064, 279054, 286596, 294557, 372072, 558108, 573192, 589114, 883671, 1116216, 1178228, 1767342, 2356456, 2651013, 3534684, 5302026, 7069368, 10604052, 21208104]

約数ペア:

[(1, 21208104), (2, 10604052), (3, 7069368), (4, 5302026), (6, 3534684), (8, 2651013), (9, 2356456), (12, 1767342), (18, 1178228), (19, 1116216), (24, 883671), (36, 589114), (37, 573192), (38, 558108), (57, 372072), (72, 294557), (74, 286596), (76, 279054), (111, 191064), (114, 186036), (148, 143298), (152, 139527), (171, 124024), (222, 95532), (228, 93018), (296, 71649), (333, 63688), (342, 62012), (419, 50616), (444, 47766), (456, 46509), (666, 31844), (684, 31006), (703, 30168), (838, 25308), (888, 23883), (1257, 16872), (1332, 15922), (1368, 15503), (1406, 15084), (1676, 12654), (2109, 10056), (2514, 8436), (2664, 7961), (2812, 7542), (3352, 6327), (3771, 5624), (4218, 5028)]