638961906

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{1013}}^1$

素因数の和:1551

約数の個数: 64

約数和(自身を含む): 1471841280

約数和(自身を除く): 832879374

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 114, 209, 418, 503, 627, 1006, 1013, 1254, 1509, 2026, 3018, 3039, 5533, 6078, 9557, 11066, 11143, 16599, 19114, 19247, 22286, 28671, 33198, 33429, 38494, 57342, 57741, 66858, 105127, 115482, 210254, 211717, 315381, 423434, 509539, 630762, 635151, 1019078, 1270302, 1528617, 3057234, 5604929, 9681241, 11209858, 16814787, 19362482, 29043723, 33629574, 58087446, 106493651, 212987302, 319480953, 638961906]

約数ペア:

[(1, 638961906), (2, 319480953), (3, 212987302), (6, 106493651), (11, 58087446), (19, 33629574), (22, 29043723), (33, 19362482), (38, 16814787), (57, 11209858), (66, 9681241), (114, 5604929), (209, 3057234), (418, 1528617), (503, 1270302), (627, 1019078), (1006, 635151), (1013, 630762), (1254, 509539), (1509, 423434), (2026, 315381), (3018, 211717), (3039, 210254), (5533, 115482), (6078, 105127), (9557, 66858), (11066, 57741), (11143, 57342), (16599, 38494), (19114, 33429), (19247, 33198), (22286, 28671)]