21289356

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1453}}^1$

素因数の和:1511

約数の個数: 72

約数和(自身を含む): 60335184

約数和(自身を除く): 39045828

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 37, 44, 66, 74, 99, 111, 132, 148, 198, 222, 333, 396, 407, 444, 666, 814, 1221, 1332, 1453, 1628, 2442, 2906, 3663, 4359, 4884, 5812, 7326, 8718, 13077, 14652, 15983, 17436, 26154, 31966, 47949, 52308, 53761, 63932, 95898, 107522, 143847, 161283, 191796, 215044, 287694, 322566, 483849, 575388, 591371, 645132, 967698, 1182742, 1774113, 1935396, 2365484, 3548226, 5322339, 7096452, 10644678, 21289356]

約数ペア:

[(1, 21289356), (2, 10644678), (3, 7096452), (4, 5322339), (6, 3548226), (9, 2365484), (11, 1935396), (12, 1774113), (18, 1182742), (22, 967698), (33, 645132), (36, 591371), (37, 575388), (44, 483849), (66, 322566), (74, 287694), (99, 215044), (111, 191796), (132, 161283), (148, 143847), (198, 107522), (222, 95898), (333, 63932), (396, 53761), (407, 52308), (444, 47949), (666, 31966), (814, 26154), (1221, 17436), (1332, 15983), (1453, 14652), (1628, 13077), (2442, 8718), (2906, 7326), (3663, 5812), (4359, 4884)]