17971236

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 47174400

約数和(自身を除く): 29203164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 79, 89, 142, 158, 178, 213, 237, 267, 284, 316, 356, 426, 474, 534, 639, 711, 801, 852, 948, 1068, 1278, 1422, 1602, 2556, 2844, 3204, 5609, 6319, 7031, 11218, 12638, 14062, 16827, 18957, 21093, 22436, 25276, 28124, 33654, 37914, 42186, 50481, 56871, 63279, 67308, 75828, 84372, 100962, 113742, 126558, 201924, 227484, 253116, 499201, 998402, 1497603, 1996804, 2995206, 4492809, 5990412, 8985618, 17971236]

約数ペア:

[(1, 17971236), (2, 8985618), (3, 5990412), (4, 4492809), (6, 2995206), (9, 1996804), (12, 1497603), (18, 998402), (36, 499201), (71, 253116), (79, 227484), (89, 201924), (142, 126558), (158, 113742), (178, 100962), (213, 84372), (237, 75828), (267, 67308), (284, 63279), (316, 56871), (356, 50481), (426, 42186), (474, 37914), (534, 33654), (639, 28124), (711, 25276), (801, 22436), (852, 21093), (948, 18957), (1068, 16827), (1278, 14062), (1422, 12638), (1602, 11218), (2556, 7031), (2844, 6319), (3204, 5609)]