21671820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{599}}^1$

素因数の和:684

約数の個数: 96

約数和(自身を含む): 68544000

約数和(自身を除く): 46872180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 90, 108, 134, 135, 180, 201, 268, 270, 335, 402, 540, 599, 603, 670, 804, 1005, 1198, 1206, 1340, 1797, 1809, 2010, 2396, 2412, 2995, 3015, 3594, 3618, 4020, 5391, 5990, 6030, 7188, 7236, 8985, 9045, 10782, 11980, 12060, 16173, 17970, 18090, 21564, 26955, 32346, 35940, 36180, 40133, 53910, 64692, 80266, 80865, 107820, 120399, 160532, 161730, 200665, 240798, 323460, 361197, 401330, 481596, 601995, 722394, 802660, 1083591, 1203990, 1444788, 1805985, 2167182, 2407980, 3611970, 4334364, 5417955, 7223940, 10835910, 21671820]

約数ペア:

[(1, 21671820), (2, 10835910), (3, 7223940), (4, 5417955), (5, 4334364), (6, 3611970), (9, 2407980), (10, 2167182), (12, 1805985), (15, 1444788), (18, 1203990), (20, 1083591), (27, 802660), (30, 722394), (36, 601995), (45, 481596), (54, 401330), (60, 361197), (67, 323460), (90, 240798), (108, 200665), (134, 161730), (135, 160532), (180, 120399), (201, 107820), (268, 80865), (270, 80266), (335, 64692), (402, 53910), (540, 40133), (599, 36180), (603, 35940), (670, 32346), (804, 26955), (1005, 21564), (1198, 18090), (1206, 17970), (1340, 16173), (1797, 12060), (1809, 11980), (2010, 10782), (2396, 9045), (2412, 8985), (2995, 7236), (3015, 7188), (3594, 6030), (3618, 5990), (4020, 5391)]