21631638

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 52761600

約数和(自身を除く): 31129962

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 49, 69, 98, 138, 147, 161, 294, 322, 343, 457, 483, 686, 914, 966, 1029, 1127, 1371, 2058, 2254, 2742, 3199, 3381, 6398, 6762, 7889, 9597, 10511, 15778, 19194, 21022, 22393, 23667, 31533, 44786, 47334, 63066, 67179, 73577, 134358, 147154, 156751, 220731, 313502, 441462, 470253, 515039, 940506, 1030078, 1545117, 3090234, 3605273, 7210546, 10815819, 21631638]

約数ペア:

[(1, 21631638), (2, 10815819), (3, 7210546), (6, 3605273), (7, 3090234), (14, 1545117), (21, 1030078), (23, 940506), (42, 515039), (46, 470253), (49, 441462), (69, 313502), (98, 220731), (138, 156751), (147, 147154), (161, 134358), (294, 73577), (322, 67179), (343, 63066), (457, 47334), (483, 44786), (686, 31533), (914, 23667), (966, 22393), (1029, 21022), (1127, 19194), (1371, 15778), (2058, 10511), (2254, 9597), (2742, 7889), (3199, 6762), (3381, 6398)]