21335688

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 66393600

約数和(自身を除く): 45057912

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 31, 33, 36, 44, 62, 66, 72, 79, 88, 93, 99, 121, 124, 132, 158, 186, 198, 237, 242, 248, 264, 279, 316, 341, 363, 372, 396, 474, 484, 558, 632, 682, 711, 726, 744, 792, 869, 948, 968, 1023, 1089, 1116, 1364, 1422, 1452, 1738, 1896, 2046, 2178, 2232, 2449, 2607, 2728, 2844, 2904, 3069, 3476, 3751, 4092, 4356, 4898, 5214, 5688, 6138, 6952, 7347, 7502, 7821, 8184, 8712, 9559, 9796, 10428, 11253, 12276, 14694, 15004, 15642, 19118, 19592, 20856, 22041, 22506, 24552, 26939, 28677, 29388, 30008, 31284, 33759, 38236, 44082, 45012, 53878, 57354, 58776, 62568, 67518, 76472, 80817, 86031, 88164, 90024, 107756, 114708, 135036, 161634, 172062, 176328, 215512, 229416, 242451, 270072, 296329, 323268, 344124, 484902, 592658, 646536, 688248, 888987, 969804, 1185316, 1777974, 1939608, 2370632, 2666961, 3555948, 5333922, 7111896, 10667844, 21335688]

約数ペア:

[(1, 21335688), (2, 10667844), (3, 7111896), (4, 5333922), (6, 3555948), (8, 2666961), (9, 2370632), (11, 1939608), (12, 1777974), (18, 1185316), (22, 969804), (24, 888987), (31, 688248), (33, 646536), (36, 592658), (44, 484902), (62, 344124), (66, 323268), (72, 296329), (79, 270072), (88, 242451), (93, 229416), (99, 215512), (121, 176328), (124, 172062), (132, 161634), (158, 135036), (186, 114708), (198, 107756), (237, 90024), (242, 88164), (248, 86031), (264, 80817), (279, 76472), (316, 67518), (341, 62568), (363, 58776), (372, 57354), (396, 53878), (474, 45012), (484, 44082), (558, 38236), (632, 33759), (682, 31284), (711, 30008), (726, 29388), (744, 28677), (792, 26939), (869, 24552), (948, 22506), (968, 22041), (1023, 20856), (1089, 19592), (1116, 19118), (1364, 15642), (1422, 15004), (1452, 14694), (1738, 12276), (1896, 11253), (2046, 10428), (2178, 9796), (2232, 9559), (2449, 8712), (2607, 8184), (2728, 7821), (2844, 7502), (2904, 7347), (3069, 6952), (3476, 6138), (3751, 5688), (4092, 5214), (4356, 4898)]