31575453

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 56077056

約数和(自身を除く): 24501603

約数列:

[1, 3, 7, 13, 21, 31, 39, 41, 49, 91, 93, 123, 147, 169, 217, 273, 287, 403, 507, 533, 637, 651, 861, 1183, 1209, 1271, 1519, 1599, 1911, 2009, 2821, 3549, 3731, 3813, 4557, 5239, 6027, 6929, 8281, 8463, 8897, 11193, 15717, 16523, 19747, 20787, 24843, 26117, 26691, 36673, 48503, 49569, 59241, 62279, 78351, 110019, 115661, 145509, 186837, 214799, 256711, 339521, 346983, 644397, 770133, 809627, 1018563, 1503593, 2428881, 4510779, 10525151, 31575453]

約数ペア:

[(1, 31575453), (3, 10525151), (7, 4510779), (13, 2428881), (21, 1503593), (31, 1018563), (39, 809627), (41, 770133), (49, 644397), (91, 346983), (93, 339521), (123, 256711), (147, 214799), (169, 186837), (217, 145509), (273, 115661), (287, 110019), (403, 78351), (507, 62279), (533, 59241), (637, 49569), (651, 48503), (861, 36673), (1183, 26691), (1209, 26117), (1271, 24843), (1519, 20787), (1599, 19747), (1911, 16523), (2009, 15717), (2821, 11193), (3549, 8897), (3731, 8463), (3813, 8281), (4557, 6929), (5239, 6027)]