18804937808

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{269}}^1\times {\mathrm{20707}}^1$

素因数の和:21195

約数の個数: 40

約数和(自身を含む): 36745103520

約数和(自身を除く): 17940165712

約数列:

[1, 2, 4, 8, 16, 211, 269, 422, 538, 844, 1076, 1688, 2152, 3376, 4304, 20707, 41414, 56759, 82828, 113518, 165656, 227036, 331312, 454072, 908144, 4369177, 5570183, 8738354, 11140366, 17476708, 22280732, 34953416, 44561464, 69906832, 89122928, 1175308613, 2350617226, 4701234452, 9402468904, 18804937808]

約数ペア:

[(1, 18804937808), (2, 9402468904), (4, 4701234452), (8, 2350617226), (16, 1175308613), (211, 89122928), (269, 69906832), (422, 44561464), (538, 34953416), (844, 22280732), (1076, 17476708), (1688, 11140366), (2152, 8738354), (3376, 5570183), (4304, 4369177), (20707, 908144), (41414, 454072), (56759, 331312), (82828, 227036), (113518, 165656)]