21631512

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:736

約数の個数: 64

約数和(自身を含む): 62150400

約数和(自身を除く): 40518888

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 331, 389, 662, 778, 993, 1167, 1324, 1556, 1986, 2317, 2334, 2648, 2723, 3112, 3972, 4634, 4668, 5446, 6951, 7944, 8169, 9268, 9336, 10892, 13902, 16338, 18536, 21784, 27804, 32676, 55608, 65352, 128759, 257518, 386277, 515036, 772554, 901313, 1030072, 1545108, 1802626, 2703939, 3090216, 3605252, 5407878, 7210504, 10815756, 21631512]

約数ペア:

[(1, 21631512), (2, 10815756), (3, 7210504), (4, 5407878), (6, 3605252), (7, 3090216), (8, 2703939), (12, 1802626), (14, 1545108), (21, 1030072), (24, 901313), (28, 772554), (42, 515036), (56, 386277), (84, 257518), (168, 128759), (331, 65352), (389, 55608), (662, 32676), (778, 27804), (993, 21784), (1167, 18536), (1324, 16338), (1556, 13902), (1986, 10892), (2317, 9336), (2334, 9268), (2648, 8169), (2723, 7944), (3112, 6951), (3972, 5446), (4634, 4668)]