20131121451

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1\times {\mathrm{1031}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 31905939456

約数和(自身を除く): 11774818005

約数列:

[1, 3, 7, 21, 47, 73, 141, 219, 271, 329, 511, 813, 987, 1031, 1533, 1897, 3093, 3431, 5691, 7217, 10293, 12737, 19783, 21651, 24017, 38211, 48457, 59349, 72051, 75263, 89159, 138481, 145371, 225789, 267477, 279401, 339199, 415443, 526841, 838203, 929801, 1017597, 1580523, 1955807, 2789403, 3537361, 5867421, 6508607, 10612083, 13131847, 19525821, 20396273, 24761527, 39395541, 61188819, 74284581, 91922929, 142773911, 275768787, 428321733, 958624831, 2875874493, 6710373817, 20131121451]

約数ペア:

[(1, 20131121451), (3, 6710373817), (7, 2875874493), (21, 958624831), (47, 428321733), (73, 275768787), (141, 142773911), (219, 91922929), (271, 74284581), (329, 61188819), (511, 39395541), (813, 24761527), (987, 20396273), (1031, 19525821), (1533, 13131847), (1897, 10612083), (3093, 6508607), (3431, 5867421), (5691, 3537361), (7217, 2789403), (10293, 1955807), (12737, 1580523), (19783, 1017597), (21651, 929801), (24017, 838203), (38211, 526841), (48457, 415443), (59349, 339199), (72051, 279401), (75263, 267477), (89159, 225789), (138481, 145371)]