21477885

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 128

約数和(自身を含む): 46448640

約数和(自身を除く): 24970755

約数列:

[1, 3, 5, 11, 13, 15, 17, 19, 31, 33, 39, 51, 55, 57, 65, 85, 93, 95, 143, 155, 165, 187, 195, 209, 221, 247, 255, 285, 323, 341, 403, 429, 465, 527, 561, 589, 627, 663, 715, 741, 935, 969, 1023, 1045, 1105, 1209, 1235, 1581, 1615, 1705, 1767, 2015, 2145, 2431, 2635, 2717, 2805, 2945, 3135, 3315, 3553, 3705, 4199, 4433, 4845, 5115, 5797, 6045, 6479, 6851, 7293, 7657, 7905, 8151, 8835, 10013, 10659, 12155, 12597, 13299, 13585, 17391, 17765, 19437, 20553, 20995, 22165, 22971, 28985, 30039, 32395, 34255, 36465, 38285, 40755, 46189, 50065, 53295, 62985, 66495, 75361, 84227, 86955, 97185, 102765, 110143, 114855, 130169, 138567, 150195, 226083, 230945, 252681, 330429, 376805, 390507, 421135, 550715, 650845, 692835, 1130415, 1263405, 1431859, 1652145, 1952535, 4295577, 7159295, 21477885]

約数ペア:

[(1, 21477885), (3, 7159295), (5, 4295577), (11, 1952535), (13, 1652145), (15, 1431859), (17, 1263405), (19, 1130415), (31, 692835), (33, 650845), (39, 550715), (51, 421135), (55, 390507), (57, 376805), (65, 330429), (85, 252681), (93, 230945), (95, 226083), (143, 150195), (155, 138567), (165, 130169), (187, 114855), (195, 110143), (209, 102765), (221, 97185), (247, 86955), (255, 84227), (285, 75361), (323, 66495), (341, 62985), (403, 53295), (429, 50065), (465, 46189), (527, 40755), (561, 38285), (589, 36465), (627, 34255), (663, 32395), (715, 30039), (741, 28985), (935, 22971), (969, 22165), (1023, 20995), (1045, 20553), (1105, 19437), (1209, 17765), (1235, 17391), (1581, 13585), (1615, 13299), (1705, 12597), (1767, 12155), (2015, 10659), (2145, 10013), (2431, 8835), (2635, 8151), (2717, 7905), (2805, 7657), (2945, 7293), (3135, 6851), (3315, 6479), (3553, 6045), (3705, 5797), (4199, 5115), (4433, 4845)]