21248892

素因数分解:

$2^2\times 3^7\times 7^1\times {\mathrm{347}}^1$

素因数の和:379

約数の個数: 96

約数和(自身を含む): 63920640

約数和(自身を除く): 42671748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 347, 378, 486, 567, 694, 729, 756, 972, 1041, 1134, 1388, 1458, 1701, 2082, 2187, 2268, 2429, 2916, 3123, 3402, 4164, 4374, 4858, 5103, 6246, 6804, 7287, 8748, 9369, 9716, 10206, 12492, 14574, 15309, 18738, 20412, 21861, 28107, 29148, 30618, 37476, 43722, 56214, 61236, 65583, 84321, 87444, 112428, 131166, 168642, 196749, 252963, 262332, 337284, 393498, 505926, 590247, 758889, 786996, 1011852, 1180494, 1517778, 1770741, 2360988, 3035556, 3541482, 5312223, 7082964, 10624446, 21248892]

約数ペア:

[(1, 21248892), (2, 10624446), (3, 7082964), (4, 5312223), (6, 3541482), (7, 3035556), (9, 2360988), (12, 1770741), (14, 1517778), (18, 1180494), (21, 1011852), (27, 786996), (28, 758889), (36, 590247), (42, 505926), (54, 393498), (63, 337284), (81, 262332), (84, 252963), (108, 196749), (126, 168642), (162, 131166), (189, 112428), (243, 87444), (252, 84321), (324, 65583), (347, 61236), (378, 56214), (486, 43722), (567, 37476), (694, 30618), (729, 29148), (756, 28107), (972, 21861), (1041, 20412), (1134, 18738), (1388, 15309), (1458, 14574), (1701, 12492), (2082, 10206), (2187, 9716), (2268, 9369), (2429, 8748), (2916, 7287), (3123, 6804), (3402, 6246), (4164, 5103), (4374, 4858)]