19666374

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 48921600

約数和(自身を除く): 29255226

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 181, 182, 199, 273, 362, 398, 543, 546, 597, 1086, 1194, 1267, 1393, 2353, 2534, 2587, 2786, 3801, 4179, 4706, 5174, 7059, 7602, 7761, 8358, 14118, 15522, 16471, 18109, 32942, 36019, 36218, 49413, 54327, 72038, 98826, 108057, 108654, 216114, 252133, 468247, 504266, 756399, 936494, 1404741, 1512798, 2809482, 3277729, 6555458, 9833187, 19666374]

約数ペア:

[(1, 19666374), (2, 9833187), (3, 6555458), (6, 3277729), (7, 2809482), (13, 1512798), (14, 1404741), (21, 936494), (26, 756399), (39, 504266), (42, 468247), (78, 252133), (91, 216114), (181, 108654), (182, 108057), (199, 98826), (273, 72038), (362, 54327), (398, 49413), (543, 36218), (546, 36019), (597, 32942), (1086, 18109), (1194, 16471), (1267, 15522), (1393, 14118), (2353, 8358), (2534, 7761), (2587, 7602), (2786, 7059), (3801, 5174), (4179, 4706)]