21137995730

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{16301}}^1$

素因数の和:16475

約数の個数: 64

約数和(自身を含む): 40564592640

約数和(自身を除く): 19426596910

約数列:

[1, 2, 5, 10, 31, 47, 62, 89, 94, 155, 178, 235, 310, 445, 470, 890, 1457, 2759, 2914, 4183, 5518, 7285, 8366, 13795, 14570, 16301, 20915, 27590, 32602, 41830, 81505, 129673, 163010, 259346, 505331, 648365, 766147, 1010662, 1296730, 1450789, 1532294, 2526655, 2901578, 3830735, 5053310, 7253945, 7661470, 14507890, 23750557, 44974459, 47501114, 68187083, 89948918, 118752785, 136374166, 224872295, 237505570, 340935415, 449744590, 681870830, 2113799573, 4227599146, 10568997865, 21137995730]

約数ペア:

[(1, 21137995730), (2, 10568997865), (5, 4227599146), (10, 2113799573), (31, 681870830), (47, 449744590), (62, 340935415), (89, 237505570), (94, 224872295), (155, 136374166), (178, 118752785), (235, 89948918), (310, 68187083), (445, 47501114), (470, 44974459), (890, 23750557), (1457, 14507890), (2759, 7661470), (2914, 7253945), (4183, 5053310), (5518, 3830735), (7285, 2901578), (8366, 2526655), (13795, 1532294), (14570, 1450789), (16301, 1296730), (20915, 1010662), (27590, 766147), (32602, 648365), (41830, 505331), (81505, 259346), (129673, 163010)]