21313638

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 49547520

約数和(自身を除く): 28233882

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 67, 86, 129, 134, 137, 201, 258, 274, 387, 402, 411, 603, 774, 822, 1161, 1206, 1233, 1809, 2322, 2466, 2881, 3618, 3699, 5762, 5891, 7398, 8643, 9179, 11782, 17286, 17673, 18358, 25929, 27537, 35346, 51858, 53019, 55074, 77787, 82611, 106038, 155574, 159057, 165222, 247833, 318114, 394697, 495666, 789394, 1184091, 2368182, 3552273, 7104546, 10656819, 21313638]

約数ペア:

[(1, 21313638), (2, 10656819), (3, 7104546), (6, 3552273), (9, 2368182), (18, 1184091), (27, 789394), (43, 495666), (54, 394697), (67, 318114), (86, 247833), (129, 165222), (134, 159057), (137, 155574), (201, 106038), (258, 82611), (274, 77787), (387, 55074), (402, 53019), (411, 51858), (603, 35346), (774, 27537), (822, 25929), (1161, 18358), (1206, 17673), (1233, 17286), (1809, 11782), (2322, 9179), (2466, 8643), (2881, 7398), (3618, 5891), (3699, 5762)]