212972985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{593}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 386964864

約数和(自身を除く): 173991879

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 347, 593, 1035, 1041, 1735, 1779, 2965, 3123, 5205, 5337, 7981, 8895, 13639, 15615, 23943, 26685, 39905, 40917, 68195, 71829, 119715, 122751, 204585, 205771, 359145, 613755, 617313, 1028855, 1851939, 3086565, 4732733, 9259695, 14198199, 23663665, 42594597, 70990995, 212972985]

約数ペア:

[(1, 212972985), (3, 70990995), (5, 42594597), (9, 23663665), (15, 14198199), (23, 9259695), (45, 4732733), (69, 3086565), (115, 1851939), (207, 1028855), (345, 617313), (347, 613755), (593, 359145), (1035, 205771), (1041, 204585), (1735, 122751), (1779, 119715), (2965, 71829), (3123, 68195), (5205, 40917), (5337, 39905), (7981, 26685), (8895, 23943), (13639, 15615)]