21091932

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 34927668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 89, 116, 174, 178, 227, 261, 267, 348, 356, 454, 522, 534, 681, 801, 908, 1044, 1068, 1362, 1602, 2043, 2581, 2724, 3204, 4086, 5162, 6583, 7743, 8172, 10324, 13166, 15486, 19749, 20203, 23229, 26332, 30972, 39498, 40406, 46458, 59247, 60609, 78996, 80812, 92916, 118494, 121218, 181827, 236988, 242436, 363654, 585887, 727308, 1171774, 1757661, 2343548, 3515322, 5272983, 7030644, 10545966, 21091932]

約数ペア:

[(1, 21091932), (2, 10545966), (3, 7030644), (4, 5272983), (6, 3515322), (9, 2343548), (12, 1757661), (18, 1171774), (29, 727308), (36, 585887), (58, 363654), (87, 242436), (89, 236988), (116, 181827), (174, 121218), (178, 118494), (227, 92916), (261, 80812), (267, 78996), (348, 60609), (356, 59247), (454, 46458), (522, 40406), (534, 39498), (681, 30972), (801, 26332), (908, 23229), (1044, 20203), (1068, 19749), (1362, 15486), (1602, 13166), (2043, 10324), (2581, 8172), (2724, 7743), (3204, 6583), (4086, 5162)]