21637156947

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{1319}}^1$

素因数の和:1616

約数の個数: 64

約数和(自身を含む): 34123161600

約数和(自身を除く): 12486004653

約数列:

[1, 3, 7, 21, 67, 89, 131, 201, 267, 393, 469, 623, 917, 1319, 1407, 1869, 2751, 3957, 5963, 8777, 9233, 11659, 17889, 26331, 27699, 34977, 41741, 61439, 81613, 88373, 117391, 125223, 172789, 184317, 244839, 265119, 352173, 518367, 618611, 781153, 821737, 1209523, 1855833, 2343459, 2465211, 3628569, 5468071, 7865197, 11576863, 15378221, 16404213, 23595591, 34730589, 46134663, 55056379, 81038041, 107647547, 165169137, 243114123, 322942641, 1030340807, 3091022421, 7212385649, 21637156947]

約数ペア:

[(1, 21637156947), (3, 7212385649), (7, 3091022421), (21, 1030340807), (67, 322942641), (89, 243114123), (131, 165169137), (201, 107647547), (267, 81038041), (393, 55056379), (469, 46134663), (623, 34730589), (917, 23595591), (1319, 16404213), (1407, 15378221), (1869, 11576863), (2751, 7865197), (3957, 5468071), (5963, 3628569), (8777, 2465211), (9233, 2343459), (11659, 1855833), (17889, 1209523), (26331, 821737), (27699, 781153), (34977, 618611), (41741, 518367), (61439, 352173), (81613, 265119), (88373, 244839), (117391, 184317), (125223, 172789)]