20907018

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 51603840

約数和(自身を除く): 30696822

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 61, 66, 99, 122, 183, 198, 297, 366, 549, 577, 594, 671, 1098, 1154, 1342, 1647, 1731, 2013, 3294, 3462, 4026, 5193, 6039, 6347, 10386, 12078, 12694, 15579, 18117, 19041, 31158, 35197, 36234, 38082, 57123, 70394, 105591, 114246, 171369, 211182, 316773, 342738, 387167, 633546, 774334, 950319, 1161501, 1900638, 2323002, 3484503, 6969006, 10453509, 20907018]

約数ペア:

[(1, 20907018), (2, 10453509), (3, 6969006), (6, 3484503), (9, 2323002), (11, 1900638), (18, 1161501), (22, 950319), (27, 774334), (33, 633546), (54, 387167), (61, 342738), (66, 316773), (99, 211182), (122, 171369), (183, 114246), (198, 105591), (297, 70394), (366, 57123), (549, 38082), (577, 36234), (594, 35197), (671, 31158), (1098, 19041), (1154, 18117), (1342, 15579), (1647, 12694), (1731, 12078), (2013, 10386), (3294, 6347), (3462, 6039), (4026, 5193)]