21098532

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^2$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 61029696

約数和(自身を除く): 39931164

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 139, 156, 182, 273, 278, 364, 417, 546, 556, 834, 973, 1092, 1668, 1807, 1946, 2919, 3614, 3892, 5421, 5838, 7228, 10842, 11676, 12649, 19321, 21684, 25298, 37947, 38642, 50596, 57963, 75894, 77284, 115926, 135247, 151788, 231852, 251173, 270494, 405741, 502346, 540988, 753519, 811482, 1004692, 1507038, 1622964, 1758211, 3014076, 3516422, 5274633, 7032844, 10549266, 21098532]

約数ペア:

[(1, 21098532), (2, 10549266), (3, 7032844), (4, 5274633), (6, 3516422), (7, 3014076), (12, 1758211), (13, 1622964), (14, 1507038), (21, 1004692), (26, 811482), (28, 753519), (39, 540988), (42, 502346), (52, 405741), (78, 270494), (84, 251173), (91, 231852), (139, 151788), (156, 135247), (182, 115926), (273, 77284), (278, 75894), (364, 57963), (417, 50596), (546, 38642), (556, 37947), (834, 25298), (973, 21684), (1092, 19321), (1668, 12649), (1807, 11676), (1946, 10842), (2919, 7228), (3614, 5838), (3892, 5421)]