21770141988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{698567}}^1$

素因数の和:698641

約数の個数: 72

約数和(自身を含む): 60205384512

約数和(自身を除く): 38435242524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 53, 84, 98, 106, 147, 159, 196, 212, 294, 318, 371, 588, 636, 742, 1113, 1484, 2226, 2597, 4452, 5194, 7791, 10388, 15582, 31164, 698567, 1397134, 2095701, 2794268, 4191402, 4889969, 8382804, 9779938, 14669907, 19559876, 29339814, 34229783, 37024051, 58679628, 68459566, 74048102, 102689349, 111072153, 136919132, 148096204, 205378698, 222144306, 259168357, 410757396, 444288612, 518336714, 777505071, 1036673428, 1555010142, 1814178499, 3110020284, 3628356998, 5442535497, 7256713996, 10885070994, 21770141988]

約数ペア:

[(1, 21770141988), (2, 10885070994), (3, 7256713996), (4, 5442535497), (6, 3628356998), (7, 3110020284), (12, 1814178499), (14, 1555010142), (21, 1036673428), (28, 777505071), (42, 518336714), (49, 444288612), (53, 410757396), (84, 259168357), (98, 222144306), (106, 205378698), (147, 148096204), (159, 136919132), (196, 111072153), (212, 102689349), (294, 74048102), (318, 68459566), (371, 58679628), (588, 37024051), (636, 34229783), (742, 29339814), (1113, 19559876), (1484, 14669907), (2226, 9779938), (2597, 8382804), (4452, 4889969), (5194, 4191402), (7791, 2794268), (10388, 2095701), (15582, 1397134), (31164, 698567)]